The Situationist

Archive for the ‘Neuroscience’ Category

Frontier Tort – Selling Beer in Whiteclay

Posted by The Situationist Staff on April 15, 2013

Alcoholism Cover Small

At Harvard Law School in the fall of 2012, the 80 students in Professor Hanson’s situationist-orient torts class participated in an experimental group project in their first-year torts class. The project required students to research, discuss, and write a white paper about a current policy problem for which tort law (or some form of civil liability) might provide a partial solution.  Their projects, presentations, and white papers were informed significantly by the mind sciences. You can read more about those projects, view the presentations, and download the white papers at the Frontier Torts website.

One of the group projects involved the sale of alcohol to members of the Oglala Sioux in Whiteclay Nebraska outside the Pine Ridge Indian Reservation. Here’s the Executive Summary of the white paper.

Native American Alcoholism: A Frontier Tort

Executive Summary


Since its introduction into Native American communities by European colonists, alcohol has plagued the members of many tribes to a disastrous extent. The Oglala Sioux of Pine Ridge have especially suffered from alcoholism, enabled and encouraged by liquor stores just outside the reservation’s borders. Despite the complexities of this situation, media outlets have often reduced it to a pitiable image of dirty, poor Native Americans, degraded by the white man’s vice.

Upon further analysis, however, it becomes evident that there are a variety of factors influencing the situation of Native American alcoholism. While neurobiological, psychological, and genetic factors are often thought to offer plausible internal situational explanations as to why Native Americans suffer so much more potently from this disease than the rest of the nation, high levels of poverty in Native American communities, a traumatic and violent history, and informational issues compound as external situational factors that exacerbate the problem.

Unfortunately, the three major stakeholders in this situation (the alcohol industry, the State of Nebraska, and the Native Americans) have conflicting interests, tactics, and attribution modes that clash significantly in ways that have prevented any meaningful resolution from being reached. However, there are a variety of federal, state, and tribal programs and initiatives that could potentially resolve this issue in a practical way, so long as all key players agree to participate in a meaningful, collaborative effort.

The key to implementation of these policy actions is determining who should bear the costs they require: society as a whole through the traditional federal taxes, the alcohol companies through tort litigation, or the individuals who purchase the alcohol through an alcohol sales tax. Ultimately, an economic analysis leads to the conclusion that liability should be placed upon the alcohol companies and tort litigation damages should fund the suggested policy initiatives.

You can watch the related presentations and download the white paper here.

Related Situationist posts:

Posted in Deep Capture, Food and Drug Law, History, Marketing, Morality, Neuroscience, Politics, Situationist Contributors | Leave a Comment »

Unconscious Processing Can Improve Decision-Making

Posted by The Situationist Staff on February 18, 2013

From Carnegie Mellon:

When faced with a difficult decision, it is often suggested to “sleep on it” or take a break from thinking about the decision in order to gain clarity.

But new brain imaging research from Carnegie Mellon University, published in the journal “Social Cognitive and Affective Neuroscience,” finds that the brain regions responsible for making decisions continue to be active even when the conscious brain is distracted with a different task. The research provides some of the first evidence showing how the brain unconsciously processes decision information in ways that lead to improved decision-making.

“This research begins to chip away at the mystery of our unconscious brains and decision-making,” said J. David Creswell, assistant professor of psychology in CMU’s Dietrich College of Humanities and Social Sciences and director of the Health and Human Performance Laboratory. “It shows that brain regions important for decision-making remain active even while our brains may be simultaneously engaged in unrelated tasks, such as thinking about a math problem. What’s most intriguing about this finding is that participants did not have any awareness that their brains were still working on the decision problem while they were engaged in an unrelated task.”

Unconsious ThoughtFor the study, Creswell, recent CMU graduate James K. Bursley and Northeastern University’s Ajay B. Satpute presented 27 healthy adults with information about cars and other items while undergoing neuroimaging. Then, before being asked to make decisions about the items, the participants had to complete a difficult distractor task — memorizing sequences of numbers — to prevent them from consciously thinking about the decision information.

The results included three main findings. First, the team confirmed previous research demonstrating that a brief period of distraction — in this case two minutes — produced higher quality decisions about the cars and other items. But did this effect occur because the distraction period provided an opportunity for the brain to take a break from decision-making and then return to the problem with a fresh look? Or alternatively, does the brain continue to unconsciously process decision information during this distraction period? This research supports the latter unconscious processing explanation.

When the participants were initially learning information about the cars and other items, the neuroimaging results showed activation in the visual and prefrontal cortices, regions that are known to be responsible for learning and decision-making. Additionally, during the distractor task, both the visual and prefrontal cortices continued to be active — or reactivated — even though the brain was consciously focused on number memorization.

Third, the results showed that the amount of reactivation within the visual and prefrontal cortices during the distractor task predicted the degree to which participants made better decisions, such as picking the best car in the set.

“We all face difficult problems we need to solve on a regular basis,” Creswell said. “Whether it’s buying a new car, finding a new apartment to rent, or seeking out a new dating partner on social networking sites. This study provides some of the first clues for how our brains process this information for effective problem-solving and decision-making.”

Bursley (DC’12), who joined CMU’s Health and Human Performance Laboratory as a freshman, spent his undergraduate career working on this research and related studies. To support his work, he received a Small Undergraduate Research Grant (SURG) and Summer Undergraduate Research Fellowship (SURF). Bursley also received a Rothberg Research Award in Human Brain Imaging, made possible by Carnegie Mellon alumnus and trustee Jonathan M. Rothberg (E’85), founder of four genetics companies aimed at improving human health.

“Carnegie Mellon was the perfect place to carry out this work because there’s a significant focus here on pursuing new directions in mind-brain research,” Bursley said. “This study is really a starting point. We also are using brain imaging to see if we find the same reactivation patterns in learning tasks that we saw here in decision-making.”

CMU’s Department of Psychology has helped to establish Carnegie Mellon as a world leader in brain sciences. The university recently launched a Brain, Mind and Learning initiative to build from its research excellence in psychology, computer science and computation to continue to solve real-world problems.

Related Situationist posts:

Posted in Choice Myth, Neuroscience, Video | 2 Comments »

The Situation of Habits

Posted by The Situationist Staff on January 17, 2013

From Goodlife Project:

Jonathan Fields, interviews New York Times investigative reporter and author of The Power of Habit, Charles Duhigg.

Related Situationist Posts:

Posted in Marketing, Neuroscience | Leave a Comment »

Rebecca Saxe on the State of Cognitive Neuroscience

Posted by The Situationist Staff on September 26, 2012

Rebecca Saxe is an Associate Professor of Cognitive Neuroscience in the department of Brain and Cognitive Sciences at MIT. She is also an associate member of the McGovern Institute for Brain Research. She is known for her research on the neural basis of social cognition.

Related Situationist posts:

Posted in Marketing, Neuroscience, Video | 1 Comment »

The Interior Situational Effect of Ads

Posted by The Situationist Staff on September 14, 2012

Video from UMISR:

Brain scans showing neural reactions to pro-health messages can predict if you’ll keep that resolution to quit smoking more accurately than you yourself can. In this video, ISR researcher Emily Falk talks about her current and future research.

From APS (regarding Psychological Science article by Emily Falk, Elliot T. Berkman, and Matt Lieberman):

Brain scans of a small group of people can predict the actions of entire populations, according to a new study by researchers from the University of Michigan, the University of Oregon and the University of California, Los Angeles.

The findings are relevant to political advertising, commercial market research, and public health campaigns, and broaden the use of brain imaging from a diagnostic to a predictive tool.

As opposed to the wisdom of the crowd, the study suggests that the neurological reactions of a few – reactions that people are not even consciously aware of, and that differ from the opinions they express – can predict the responses of many other people to ad campaigns promoting specific behaviors.

“Brain responses to ads forecasted the ads’ success when other predictors failed,” said Emily Falk, first author of the study, which appears online in Psychological Science, a journal of the Association for Psychological Science. Falk directs the University of Michigan Communication Neuroscience Lab.

Falk conducted the study with Elliot Berkman at the University of Oregon and Matthew Lieberman at UCLA. The researchers were supported by the National Science Foundation and by the National Institutes of Health.

“If people are making decisions based on what focus groups tell them, here’s an important brain region saying, ‘No, spend your money a different way,’” Matthew Lieberman said. “If I were deciding on an advertising campaign, I would want to know which ads are activating this region the most — that is where I would want to spend my money.”

“Our findings could help design better health campaigns. This is a key step in reducing the number of smokers and reducing deaths from cancer, heart disease, and other smoking-related illnesses,” Falk said.

The findings might also help produce more effective political campaign ads, and provide a neural roadmap to why some videos, fashions, behaviors, and ideas go viral, moving from one person to many thousands of others via social media.

For the study, the researchers recruited 31 heavy smokers with a strong desire to quit, and examined their neural responses to three anti-smoking ad campaigns, using functional magnetic resonance imaging (fMRI). All the ads directly urged viewers to call the National Cancer Institute’s tobacco quit line (1-800-QUIT-NOW).

Following the fMRI, participants rated the effectiveness of the ads they had just viewed in a variety of ways. The researchers compared their brain scans to their reports on the ads’ effectiveness.

To obtain population-level measures, the researchers compared the number of calls to the tobacco quit-line in the month before and after each media campaign first aired in three different media markets.

When asked what they thought of the ads, participants’ rated Campaign B the highest, followed by Campaign A and then Campaign C. Industry experts familiar with the campaigns also disliked Campaign C. The three campaigns used very different strategies. Raters found Campaign C annoying and guessed that it would be ineffective. By contrast, Campaigns A and B resonated with participants, but in the end were less effective in actually driving calls to 1-800-QUIT-NOW.

But brain scans, which focused on the medial pre-frontal cortex, an area of the brain identified in earlier studies as linked to positive responses to persuasive messages, showed a completely different order, with Campaign C eliciting the strongest response.

At the population level, each ad campaign led to increases in call volume to the quit-smoking line, compared with a no-media control month before the launch of each campaign. The increases ranged from 2.8 to 32 times higher than the control month, and the researchers found that Campaign C led to the highest increases, followed by Campaign B and lastly Campaign A — just the opposite of the participants’ guesses but precisely the same as their brain scans showed.

“It seems that the brain is picking up on important features of these ads, but we’re not sure what these features are yet,” Falk said. “We’re doing follow up studies now to translate what the brain is telling us about how to design better messages.”

This new research represents “the first thing you could call a neural focus group,” Lieberman said.

One reason focus groups can be misleading, he said, is that people often do not know what motivates their own behavior.

“Our brain is built to generate reasons for our actions,” Lieberman said, “and we think the reasons we come up with must be true. We believe our own reasons with an intensity that is out of proportion to their accuracy. In this study, we are bypassing people’s self-reports and getting at a form of hidden wisdom in the brain.”

“These findings could help us improve the success of campaigns,” Falk emphasized. “In the long run, we hope this will help us fight cancer and other preventable diseases.”

* * *

The article’s citation is as follows: Falk, E. B., Berkman, E. T., & Lieberman, M. D. (2012). From neural responses to population behavior: Neural focus group predicts population level media effects. Psychological Science, 23, 439-445. 

Go to the Social Cognitive Neuroscience Laboratory to download a pdf of the article.

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Posted in Implicit Associations, Marketing, Neuroscience, Video | Leave a Comment »

David Eagleman’s Big Thoughts on Synesthesia

Posted by The Situationist Staff on August 16, 2012

From Big Think:

On a late winter day in 1922, the sound of a gun shot resounded with a loud boom in the hills surrounding the house of three-year-old Edgar Curtis. The sound itself wasn’t out of the ordinary, since the Curtises lived near a firing range. What was extraordinary was the question the boy turned to ask his mother: “What is that big, black noise?”

A few days later, when his mother was putting him to bed, Edgar heard the chirping of a shrill cricket and demanded, “What is that little white noise?” For Edgar, low, rhythmic notes were dark in color. High-pitched sounds were pale, and, researchers later discovered, tones in between were variously red, blue, and purple. A rainbow was “a song.”

Edgar Curtis’ story is an early example in the scientific literature of synesthesia, a neurological phenomenon in which one or more sensory modalities are linked. “There are many different forms,”  says David Eagleman, a neuroscientist known for his ability to garner important insights into the nature of perception and consciousness through idiosyncratic methods. “Essentially, any cross-blending of the senses that you can think of, my colleagues and I have found a case somewhere.”

Watch Big Think interview on synesthesia with neuroscientist David Eagleman:

Read the entire Big Think blog post here.

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Face Blindness

Posted by The Situationist Staff on August 8, 2012

From CBS News:

Imagine you couldn’t recognize people’s faces, and even your own family looked unfamiliar. Lesley Stahl reports on face blindness, a puzzling neurological disorder.

From CBS News:

This week on “60 Minutes” Lesley Stahl reports on people who are “face blind.” It’s a mysterious and sad condition that keeps sufferers from recognizing or identifying faces — even the faces of close family members, children, or spouses. Many “face blind” people don’t even know they have it.

If you suspect you might be “face blind,” in the above video, you’ll find a test that may provide an answer. We show you a series of pictures of famous people and ask you to figure out who they are.

If you have trouble identifying the faces in our test, we suggest that you check out www.faceblind.org/facetests/ where you can learn about face blindness and take other tests created by Professor Brad Duchaine and his colleagues at Dartmouth College.

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Posted in Evolutionary Psychology, Illusions, Neuroscience, Video | Leave a Comment »

The Neuro-Situation of Altruism

Posted by The Situationist Staff on July 14, 2012

Situationist friend David Berreby has a post this week on a recent study suggesting a possible link between the brain and altruistic behavior. Here’s how it starts:

In pursuit of the biological basis of morality, researchers are interested in an area of the brain at the boundary of the right temporal lobe and the right parietal lobe (very roughly, it’s located maybe 2 inches above the midpoint of a line between your right eyebrow and your right ear, not that I recommend digging around for it). This right temporoparietal junction has been linked in various ways to moral judgments about the self and others. Now this paper, out today in the journal Neuron, supplies some striking new evidence for this area’s importance. In lab experiments, people with more brain cells in this region were more altruistic than people with fewer.

Yosuke Morishima and his co-authors ran a functional MRI scan of their volunteers at the University of Zurich as they allocated a sum of money between themselves and an anonymous second person. (By the way, “Yosuke,” for an altruism researcher, is an aptonym. It’s a name that means “to give help” or “great support.”) Some of the participants were quite selfish, while others were much more altruistic, giving up a meaningful amount of cash for another person whom they did not know. And it turned out the volunteer’s degree of altruism correlated with the amount of gray matter they possessed at the right temporoparietal junction (“gray matter” consists of neurons (the cells whose activity makes brains brains) as well as the glial cells that support them and their blood supply).

Read the entire post here.

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Image from Flickr.

Posted in Abstracts, Altruism, Neuroscience | Leave a Comment »

Dan Rather Reports on the Brain’s Plasticity

Posted by The Situationist Staff on April 20, 2012

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“We Didn’t Start the Scanner”

Posted by The Situationist Staff on April 3, 2012

From PsychCentral:

“A History of Cognitive Neuroscience…in Three Minutes.” Set to the melody of Billy Joel’s classic song “We Didn’t Start the Fire,” new lyrics highlight significant scientists and advances in the field over the years, interspersed with comedy bits reminiscent of silent films. A lively and fun history lesson, this student video won the Institute of Cognitive Neuroscience Brains on Film Competition 2012 at University College London. Full lyrics are available here in the video’s description.

Sample of related Situationist posts:

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Joshua Buckholtz Comes To Harvard Law – Postponed

Posted by The Situationist Staff on March 29, 2012

Neuroscience, Psychopathology, and Crime
Postponed until fall.
Wasserstein 1023
Friday, March 30, 2012, 12 – 1pm

Why can’t some people stop themselves from doing things that are bad for them? Why can’t some people stop themselves from doing things that hurt others? These questions have puzzled philosophers, economists, and psychologists for centuries. Professor Joshua Buckholtz will discuss these issues in the context of his work at Harvard’s Systems Neuroscience of Psychopathology Lab, where he seeks to understand how genes and environments affect brain chemistry and function to influence variability in human self-control.

Free Chinese food!

Sponsor: Student Association for Law & Mind Sciences

Posted in Choice Myth, Events, Neuroscience, SALMS | Tagged: , , , | Leave a Comment »

Science and Situationism Praised on Huffington Post Blog

Posted by The Situationist Staff on March 17, 2012

From Huffington Post and Cornell Sun (By Sebastian Deri):

As someone who was better at English and history than math and science in high school, what I chose to study in college was partly an effort to shy away from the latter fields and take refuge in “softer” subjects. “Leave the questions of science to the scientists, I am concerned with justice and morality,” we, who chose humanities, said! These two domains were exclusive — “non-overlapping magisteria” as Stephen Jay Gould might say. No meaningful dialogue between the disciplines was possible or necessary.

This attitude, however, is lazy and destructive — or at best, hopelessly antiquated.

The scientific study of human behavior is shedding new light on our actions and inner life. To ignore these insights is not just a mistake. It is criminal.

I’m on our school’s mock trial team and have done mock trial for seven years now. There was a point at the beginning when I really felt that I was crusading on the side of righteousness in a system optimized for delivering justice. But eventually, I came to realize the solutions being offered in the courtroom simply could not get to the heart of the matter in the way science could. This realization came not from inside a courtroom, but rather from a brain scientist writing in a magazine.

In an article in The Atlantic, “The Brain on Trial,” David Eagleman makes the case that we must wade out of the swamp of the medieval machinations of our legal system — obsessed with the ancient and largely useless preoccupation with assigning blame.

He cites a seemingly straightforward pedophilia case. Eagleman describes the case of a 40-year-old man who “developed an interest in child pornography” and began to make “subtle sexual advances toward his prepubescent stepdaughter.” Eventually he was sent to prison. It was only after the discovery and successful removal of a tumor in his brain that he was able to abandon his pedophilia. Eagleman explains, “When your biology changes, so can your decision-making and your desires. The drives you take for granted… depend on the intricate details of your neural machinery.” Eagleman argues that “we can build a legal system more deeply informed by science, because when modern brain science is laid out clearly, it is difficult to justify how our legal system can continue to function without taking what we’ve learned into account.”

But, David Eagleman is a neuroscientist. Of course he would be inclined to make such a grandiose claim for his discipline. Well, we are hearing the same calls from within the law.

Jon Hanson is Law Professor at Harvard. He has a bachelor’s degree in Economics and a degree in law. Yet, eventually his studies in law — and specifically the tobacco industry — led him to abandon this field for the study social psychology, social cognition and other mind sciences.

He has since founded “The Project on Law and the Mind Sciences” at Harvard Law School and advocates for his version of the theory he calls “situationism.” As though it were coming straight from the mouth of Eagleman, Hanson writes that situationism “is premised on the social scientific insight that the naïve psychology… on which our laws and institutions are based is largely wrong. Situationists… seek first to establish a view of the human animal that is as realistic as possible before turning to legal theory or policy. To do so, situationists rely on the insights of scientific disciplines.”

And those insights are impossible to ignore. Take the MAO-A gene. Having a certain form of this gene (the low MAO-A gene), when combined with childhood mistreatment, significantly increases your chances of becoming violent. Yet, I have only ever heard of one case where such evidence was even up for discussion. In response to that evidence, the D.A. said, “The more of this information that you put before a jury, the [greater the] chances of confusing them.” In other words, the claim is not that such evidence is irrelevant, but rather we are too stupid to handle it. How condescending and pessimistic. Even the prosecution’s rebuttal expert claimed “it’s way too early to use this research in a court of law.” If we are ever to progress morally and socially we cannot afford to hold such views.

Not just our legal system, but our political system too could use an injection of scientific reasoning. Many political claims are testable scientific hypotheses and ought to be treated as such. To support the “war on drugs,” for example, under the claim that it reduces crime and drug use is to make a scientifically testable and falsifiable hypothesis. Of course, the data is messy and experiments hard to come by, but the very act of framing these as scientific questions will help us hack through this choking epistemic relativism in which everyone is entitled to an opinion by virtue of the fact that their justification may correspond to a possible version of reality. The world is not essentially unknowable. And the tools of science can help us peer into the eyes of reality. And from that reality, we should build our society.

I’m not worried that we run the risk of ignoring science as a great tool in our legal system, political debates or moral reasoning. Its encroachment into these domains is inevitable. The question is how quickly we’re going to embrace it rather than resist it at the cost of progress. With great gusto and speed, not only must scientists become lawyers, politicians and preachers but lawyers, politicians and preachers must become scientists.

Sample of related Situationist posts:

Posted in Education, Neuroscience, Situationist Contributors, Social Psychology | Tagged: , , , , | Leave a Comment »

The Situation of Optimism

Posted by The Situationist Staff on March 12, 2012

From

Neuroscientist Tali Sharot visits the RSA to explain the biological bias of optimism, and its effect on our lives and societies.

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Posted in Illusions, Life, Neuroscience, Positive Psychology, Social Psychology, Video | Tagged: , , , | 2 Comments »

How Deceptive Advertising Preys Upon Our Minds

Posted by Adam Benforado on March 1, 2012

In my Business Organizations course this semester, we have been spending some time thinking about the collection and use of consumer data by corporations.  We have looked at the types of information that companies gather, how they employ statisticians to “weaponize” this information, and whether (and in what ways) the government might effectively (and constitutionally) regulate in this area.

Our discussion has been particularly well timed, given recent articles exposing corporate practices and proposals floated by the Obama administration to address certain types of consumer data mining practices.

One thing that surprised me in speaking with students was how unworried many of them were about corporations carefully monitoring and cataloging their behavior and characteristics.  As one student remarked, “If all of this means that Target knows when I’m in my second trimester and sends me free coupons for lotions, I think that’s great!”

I have a hunch that part of the comfort with corporate “data management” is a result of generational differences: many of my 24- or 25-year-old students have grown up in an environment in which life is lived online without window shades  and where privacy may be less valued.  Another part of the story may simply be a lack of understanding of how manipulative corporations actually are.

This leads me to wonder if with a greater knowledge of the science of advertising and marketing, we will see more restrictions on corporate actions.  If so, here is to people like Adam Craig and his colleagues who have just written an interesting new article on neural processing during exposure to deceptive advertising.

Here is the abstract:

When viewing advertisements, consumers must decide what to believe and what is meant to deceive. Accordingly, much behavioral research has explored strategies and outcomes of how consumers process persuasive messages that vary in perceived sincerity. New neuroimaging methods enable researchers to augment this knowledge by exploring the cognitive mechanisms underlying such processing. The current study collects neuroimaging data while participants are exposed to advertisements with differing levels of perceived message deceptiveness (believable, moderately deceptive, and highly deceptive). The functional magnetic resonance imaging data, combined with an additional behavioral study, offer evidence of two noteworthy results. First, confirming multistage frameworks of persuasion, the authors observe two distinct stages of brain activity: (1) precuneus activation at earlier stages and (2) superior temporal sulcus and temporal-parietal junction activation at later stages. Second, the authors observe disproportionately greater brain activity associated with claims that are moderately deceptive than those that are either believable or highly deceptive. These results provoke new thinking about what types of claims garner consumer attention and which consumers may be particularly vulnerable to deceptive advertising.

Related Situationist posts:

Posted in Deep Capture, Marketing, Neuroscience | Tagged: , | 2 Comments »

Dan Gilbert Returns to Harvard Law

Posted by The Situationist Staff on February 15, 2012

Tomorrow (2/16) Daniel Gilbert, Situationist friend, Professor of Psychology at Harvard University, author of Stumbling on Happiness, and host of the PBS television series This Emotional Life, returns to Harvard Law to deliver a talk entitled

“How To Do Precisely the Right Thing At All Possible Times.”

Most experts tell us what to decide but they don’t tell us how. So the moment we face a novel decision—should I move to Cleveland or Anchorage? Marry Jennifer or Joanne? Become an architect or a pastry chef?—we’re lost. Is it possible to do the right thing at all possible times? In fact, there is a simple method for making decisions that most people find easy to understand but impossible to follow. New research in psychology, neuroscience, and behavioral economics explains why.

February 16 – 4pm WCC – 2036 Milstein East C.

Posted in Education, Events, Life, Neuroscience, Positive Psychology, Social Psychology, Uncategorized | Tagged: , , | 1 Comment »

Situationist Valentine

Posted by The Situationist Staff on February 13, 2012

Here are some previous Situationist posts on situation of love – Happy Valentines Day:

Posted in Evolutionary Psychology, Life, Neuroscience, Social Psychology | Tagged: , , | Leave a Comment »

The Situation of Competition

Posted by The Situationist Staff on February 12, 2012

From the University of Illinois News Bureau:

Researchers have found a way to study how our brains assess the behavior – and likely future actions – of others during competitive social interactions. Their study, described in a paper in the Proceedings of the National Academy of Sciences, is the first to use a computational approach to tease out differing patterns of brain activity during these interactions, the researchers report.

“When players compete against each other in a game, they try to make a mental model of the other person’s intentions, what they’re going to do and how they’re going to play, so they can play strategically against them,” said University of Illinois postdoctoral researcher Kyle Mathewson, who conducted the study as a doctoral student in the Beckman Institute with graduate student Lusha Zhu and economics professor and Beckman affiliate Ming Hsu, who now is at the University of California, Berkeley. “We were interested in how this process happens in the brain.”

Previous studies have tended to consider only how one learns from the consequences of one’s own actions, called reinforcement learning, Mathewson said. These studies have found heightened activity in the basal ganglia, a set of brain structures known to be involved in the control of muscle movements, goals and learning. Many of these structures signal via the neurotransmitter dopamine.

“That’s been pretty well studied and it’s been figured out that dopamine seems to carry the signal for learning about the outcome of our own actions,” Mathewson said. “But how we learn from the actions of other people wasn’t very well characterized.”

Researchers call this type of learning “belief learning.”

To better understand how the brain processes information in a competitive setting, the researchers used functional magnetic resonance imaging (fMRI) to track activity in the brains of participants while they played a competitive game, called a Patent Race, against other players. The goal of the game was to invest more than one’s opponent in each round to win a prize (a patent worth considerably more than the amount wagered), while minimizing one’s own losses (the amount wagered in each trial was lost). The fMRI tracked activity at the moment the player learned the outcome of the trial and how much his or her opponent had wagered.

A computational model evaluated the players’ strategies and the outcomes of the trials to map the brain regions involved in each type of learning.

“Both types of learning were tracked by activity in the ventral striatum, which is part of the basal ganglia,” Mathewson said. “That’s traditionally known to be involved in reinforcement learning, so we were a little bit surprised to see that belief learning also was represented in that area.”

Belief learning also spurred activity in the rostral anterior cingulate, a structure deep in the front of the brain. This region is known to be involved in error processing, regret and “learning with a more social and emotional flavor,” Mathewson said.

The findings offer new insight into the workings of the brain as it is engaged in strategic thinking, Hsu said, and may aid the understanding of neuropsychiatric illnesses that undermine those processes.

“There are a number of mental disorders that affect the brain circuits implicated in our study,” Hsu said. “These include schizophrenia, depression and Parkinson’s disease. They all affect these dopaminergic regions in the frontal and striatal brain areas. So to the degree that we can better understand these ubiquitous social functions in strategic settings, it may help us understand how to characterize and, eventually, treat the social deficits that are symptoms of these diseases.”

More.

The paper, “Dissociable Neural Representations of Reinforcement and Belief Prediction Errors Underlie Strategic Learning,” is available online or from the U. of I. News Bureau.

Related Situationist posts:

Posted in Abstracts, Altruism, Conflict, Neuroscience, Uncategorized | Tagged: , | Leave a Comment »

The Situation of Choice

Posted by The Situationist Staff on January 23, 2012

From the APS Monitor (excerpts from a terrific primer on “The Mechanics of Choice”):

* * *

The prediction of social behavior significantly involves the way people make decisions about resources and wealth, so the science of decision making historically was the province of economists. And the basic assumption of economists was always that, when it comes to money, people are essentially rational. It was largely inconceivable that people would make decisions that go against their own interests. Although successive refinements of expected-utility theory made room for individual differences in how probabilities were estimated, the on-the-surface irrational economic behavior of groups and individuals could always be forced to fit some rigid, rational calculation.The problem is — and everything from fluctuations in the stock market to decisions between saving for retirement or purchasing a lottery ticket or a shirt on the sale rack shows it — people just aren’t rational. They systematically make choices that go against what an economist would predict or advocate.Enter a pair of psychological scientists — Daniel Kahneman (currently a professor emeritus at Princeton) and Amos Tversky — who in the 1970s turned the economists’ rational theories on their heads. Kahneman and Tversky’s research on heuristics and biases and their Nobel Prize winning contribution, prospect theory, poured real, irrational, only-human behavior into the calculations, enabling much more powerful prediction of how individuals really choose between risky options.

* * *

Univ. of Toronto psychologist Keith E. Stanovich and James Madison Univ. psychologist Richard F. West refer to these experiential and analytical modes as “System 1” and “System 2,” respectively. Both systems may be involved in making any particular choice — the second system may monitor the quality of the snap, System-1 judgment and adjust a decision accordingly.7 But System 1 will win out when the decider is under time pressure or when his or her System-2 processes are already taxed.

This is not to entirely disparage System-1 thinking, however. Rules of thumb are handy, after all, and for experts in high-stakes domains, it may be the quicker form of risk processing that leads to better real-world choices. In a study by Cornell University psychologist Valerie Reyna and Mayo Clinic physician Farrell J. Lloyd, expert cardiologists took less relevant information into account than younger doctors and medical students did when making decisions to admit or not admit patients with chest pain to the hospital. Experts also tended to process that information in an all-or-none fashion (a patient was either at risk of a heart attack or not) rather than expending time and effort dealing with shades of gray. In other words, the more expertise a doctor has, the more that his or her intuitive sense of the gist of a situation was used as a guide.8

In Reyna’s variant of the dual-system account, fuzzy-trace theory, the quick-decision system focuses on the gist or overall meaning of a problem instead of rationally deliberating on facts and odds of alternative outcomes.9 Because it relies on the late-developing ventromedial and dorsolateral parts of the frontal lobe, this intuitive (but informed) system is the more mature of the two systems used to make decisions involving risks.

A 2004 study by Vassar biopsychologist Abigail A. Baird and Univ. of Waterloo cognitive psychologist Jonathan A. Fugelsang showed that this gist-based system matures later than do other systems. People of different ages were asked to respond quickly to easy, risk-related questions such as “Is it a good idea to set your hair on fire?”, “Is it a good idea to drink Drano?”, and “Is it a good idea to swim with sharks?” They found that young people took about a sixth of a second longer than adults to arrive at the obvious answers (it’s “no” in all three cases, in case you were having trouble deciding).10 The fact that our gist-processing centers don’t fully mature until the 20s in most people may help explain the poor, risky choices younger, less experienced decision makers commonly make.

Adolescents decide to drive fast, have unprotected sex, use drugs, drink, or smoke not simply on impulse but also because their young brains get bogged down in calculating odds. Youth are bombarded by warning statistics intended to set them straight, yet risks of undesirable outcomes from risky activities remain objectively small — smaller than teens may have initially estimated, even — and this may actually encourage young people to take those risks rather than avoid them. Adults, in contrast, make their choices more like expert doctors: going with their guts and making an immediate black/white judgment. They just say no to risky activities because, however objectively unlikely the risks are, there’s too much at stake to warrant even considering them.11

Making Better Choices

The gist of the matter is, though, that none of us, no matter how grown up our frontal lobes, make optimal decisions; if we did, the world would be a better place. So the future of decision science is to take what we’ve learned about heuristics, biases, and System-1 versus System-2 thinking and apply it to the problem of actually improving people’s real-world choices.

One obvious approach is to get people to increase their use of System 2 to temper their emotional, snap judgments. Giving people more time to make decisions and reducing taxing demands on deliberative processing are obvious ways of bringing System 2 more into the act. Katherine L. Milkman (U. Penn.), Dolly Chugh (NYU), and Max H. Bazerman (Harvard) identify several other ways of facilitating System-2 thinking.12 One example is encouraging decision makers to replace their intuitions with formal analysis — taking into account data on all known variables, providing weights to variables, and quantifying the different choices. This method has been shown to significantly improve decisions in contexts like school admissions and hiring.

Having decision makers take an outsider’s perspective on a decision can reduce overconfidence in their knowledge, in their odds of success, and in their time to complete tasks. Encouraging decision makers to consider the opposite of their preferred choice can reduce judgment errors and biases, as can training them in statistical reasoning. Considering multiple options simultaneously rather than separately can optimize outcomes and increase an individual’s willpower in carrying out a choice. Analogical reasoning can reduce System-1 errors by highlighting how a particular task shares underlying principles with another unrelated one, thereby helping people to see past distracting surface details to more fully understand a problem. And decision making by committee rather than individually can improve decisions in group contexts, as can making individuals more accountable for their decisions.13

In some domains, however, a better approach may be to work with, rather than against, our tendency to make decisions based on visceral reactions. In the health arena, this may involve appealing to people’s gist-based thinking. Doctors and the media bombard health consumers with numerical facts and data, yet according to Reyna, patients — like teenagers — tend initially to overestimate their risks; when they learn their risk for a particular disease is actually objectively lower than they thought, they become more complacent — for instance by forgoing screening. Instead, communicating the gist, “You’re at (some) risk, you should get screened because it detects disease early” may be a more powerful motivator to make the right decision than the raw numbers. And when statistics are presented, doing so in easy-to-grasp graphic formats rather than numerically can help patients (as well as physicians, who can be as statistically challenged as most laypeople) extract their own gists from the facts.14

Complacency is a problem when decisions involve issues that feel more remote from our daily lives — problems like global warming. The biggest obstacle to changing people’s individual behavior and collectively changing environmental policy, according to Columbia University decision scientist Elke Weber, is that people just aren’t scared of climate change. Being bombarded by facts and data about perils to come is not the same as having it affect us directly and immediately; in the absence of direct personal experience, our visceral decision system does not kick in to spur us to make better environmental choices such as buying more fuel-efficient vehicles.15

How should scientists and policymakers make climate change more immediate to people? Partly, it involves shifting from facts and data to experiential button-pressing. Powerful images of global warming and its effects can help. Unfortunately, according to research conducted by Yale environmental scientist Anthony A. Leisurowitz, the dominant images of global warming in Americans’ current consciousness are of melting ice and effects on nonhuman nature, not consequences that hit closer to home; as a result, people still think of global warming as only a moderate concern.16

Reframing options in terms that connect tangibly with people’s more immediate priorities, such as the social rules and norms they want to follow, is a way to encourage environmentally sound choices even in the absence of fear.17 For example, a study by Noah J. Goldstein (Univ. of Chicago), Robert B. Cialdini (Arizona State), and Vladas Griskevicius (Univ. of Minnesota) compared the effectiveness of different types of messages in getting hotel guests to reuse their towels rather than send them to the laundry. Messages framed in terms of social norms — “the majority of guests in this room reuse their towels” — were more effective than messages simply emphasizing the environmental benefits of reuse.18

Yet another approach to getting us to make the most beneficial decisions is to appeal to our natural laziness. If there is a default option, most people will accept it because it is easiest to do so — and because they may assume that the default is the best. University of Chicago economist Richard H. Thaler suggests using policy changes to shift default choices in areas like retirement planning. Because it is expressed as normal, most people begin claiming their Social Security benefits as soon as they are eligible, in their early to mid 60s — a symbolic retirement age but not the age at which most people these days are actually retiring. Moving up the “normal” retirement age to 70 — a higher anchor — would encourage people to let their money grow longer untouched.19

* * *

Making Decisions About the Environment

APS Fellow Elke Weber recently had the opportunity to discuss her research with others who share her concern about climate change, including scientists, activists, and the Dalai Lama. Weber . . . shared her research on why people fail to act on environmental problems. According to her, both cognitive and emotional barriers prevent us from acting on environmental problems. Cognitively, for example, a person’s attention is naturally focused on the present to allow for their immediate survival in dangerous surroundings. This present-focused attitude can discourage someone from taking action on long-term challenges such as climate change. Similarly, emotions such as fear can motivate people to act, but fear is more effective for responding to immediate threats. In spite of these challenges, Weber said that there are ways to encourage people to change their behavior. Because people often fail to act when they feel powerless, it’s important to share good as well as bad environmental news and to set measurable goals for the public to pursue. Also, said Weber, simply portraying reduced consumption as a gain rather than a loss in pleasure could inspire people to act.

References and Further Reading:

  • 7. Stanovich, K.E., & West, R.F. (2000). Individual differences in reasoning: Implications for the rationality debate.
  • Behavioral & Brain Sciences, 23, 645–665.
  • 8. Reyna, V.F., & Lloyd, F. (2006). Physician decision making and cardiac risk: Effects of knowledge, risk perception, risk
  • tolerance, and fuzzy processing. Journal of Experimental Psychology: Applied, 12, 179–195.
  • 9. Reyna, V.F. (2004). How people make decisions that involve risk: A dual-processes approach. Current Directions in
  • Psychological Science, 13, 60–66.
  • 10. Baird, A.A., & Fugelsang, J.A. (2004). The emergence of consequential thought: Evidence from neuroscience.
  • Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences, 359, 1797–1804.
  • 11. Reyna, VF., & Farley, F. (2006). Risk and rationality in adolescent decision making. Psychological Science in the Public
  • Interest, 7, 1–44.
  • 12. Milkman, K.L., Chugh, D., & Bazerman, M.H. (2009). How can decision making be improved? Perspectives on
  • Psychological Science, 4, 379–383.
  • 13. Ibid.
  • 14. See Wargo, E. (2007). More than just the facts: Helping patients make informed choices. Cornell University Department
  • of Human Development: Outreach & Extension. Downloaded from http://www.human.cornell.edu/hd/outreach-extension/loader.cfm?csModule=security/getfile&PageID=43508
  • 15. Weber, E.U. (2006). Experience-based and description-based perceptions of long-term risk: Why global warming does
  • not scare us (yet). Climatic Change, 77, 103–120.
  • 16. Leisurowitz, A. (2006). Climate change risk perception and policy preferences: The role of affect, imagery, and values.
  • Climatic Change, 77, 45–72.
  • 17. Weber, E.U. (2010). What shapes perceptions of climate change? Wiley Interdisciplinary Reviews: Climate Change, 1,
  • 332–342.
  • 18. Goldstein, N.J., Cialdini, R.B., & Griskevicius, V. (2008). A room with a viewpoint: Using social norms to motivate
  • environmental conservation in hotels. Journal of Consumer Research, 35. Downloaded from http://www.csom.umn.edu/assets/118359.pdf
  • 19. Thaler, R.H. (2011, July 16). Getting the Most Out of Social Security. The New York Times. Downloaded from
  • http://www.nytimes.com/2011/07/17/business/economy/when-the-wait-for-social-security-checks-is-worth-it.html?_r=1&adxnnl=1&adxnnlx=1322835490-9f6qOJ9Sp2jSw4LKDjmYgw

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Posted in Behavioral Economics, Choice Myth, History, Ideology, Neuroscience, Public Policy | Tagged: , , , | 1 Comment »

The Interior Situation of Atrocities

Posted by The Situationist Staff on January 10, 2012

From People’s World (an article summarizing recent research by Situationist Contributor Susan Fiske):

Why do people commit atrocities? What is responsible for brutality and the cold blooded murder of innocents carried out by Nazis, the Hutu in Rwanda, or the United States against the Vietnamese people and more recently much of the civilian population of Iraq? Some scientists believe they have found the answer.

ScienceDaily reports (“Brain’s Failure to Appreciate Others May Permit Human Atrocities,” 12-14-2011) that the part of the brain responsible for social interaction with others may malfunction resulting in callousness leading to inhumane actions towards others. Scientists at Duke and Princeton have hypothesized, in a recent study, that this brain area can “disengage” when people encounter others they think are “disgusting” and the resulting violence perpetrated against them is due to thinking these objectified others have no “thoughts and feelings.”

The study, according to ScienceDaily, considers this a “shortcoming” which could account for the genocide and torture of other peoples. Examples of this kind of objectification can be seen in the calling of Jews “vermin” by the Nazis, the Tutsi “cockroaches” by the Hutu, and the American habit of calling others “gooks” (as well as other unflattering terms).

Lasana Harris (Duke) says, “When we encounter a person, we usually infer something about their minds [do they have more than one?] Sometimes, we fail to do this, opening up the possibility that we do not perceive the person as fully human.” I wonder about this? What is meant by fully human? Surely the Hutu, for example, who had lived with the Tutsi for centuries, did not really fail to infer that they had “minds.”

Practicing something called “social neuroscience” which seems to consist of showing different people pictures while they are undergoing an MRI and then drawing conclusions from which areas of the brain do or do not “light up” when asked questions about these pictures, the scientists conducting this study discovered that an area of the brain dealing with “social cognition”– i.e., feelings, thoughts, empathy, etc., “failed to engage” when pictures of homeless people, drug addicts, and others “low on the social ladder” were shown.

Susan Fiske (Princeton) remarked, “We need to think about other people’s experience. It’s what makes them fully human to us.” ScienceDaily adds the researchers were struck by the fact that “people will easily ascribe social cognition– a belief in an internal life such as emotions– to animals and cars, but will avoid making eye contact with the homeless panhandler in the subway.”

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Posted in Altruism, Conflict, Ideology, Implicit Associations, Neuroscience, Social Psychology | Tagged: , , | Leave a Comment »

Antonio Damasio on Mystery of Consciousness

Posted by The Situationist Staff on December 26, 2011

From TedTalks:

Every morning we wake up and regain consciousness — that is a marvelous fact — but what exactly is it that we regain? Neuroscientist Antonio Damasio uses this simple question to give us a glimpse into how our brains create our sense of self.

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Posted in Neuroscience, Social Psychology | Tagged: , | Leave a Comment »

 
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