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A New Twist on a Classic Puzzle

Bat_and_ball“A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost?”

Take a minute to think about it … Do you have the answer? Many people respond by saying that the ball must cost 10 cents. Is this the answer that you came up with? Although this response intuitively springs to mind, it is incorrect. If the ball cost 10 cents and the bat costs $1.00 more than the ball, then the bat would cost $1.10 for a grand total of $1.20. The correct answer to this problem is that the ball costs 5 cents and the bat costs — at a dollar more — $1.05 for a grand total of $1.10.

So why do so many people answer incorrectly? The answer is that people often substitute difficult problems with…


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Psi Chi/APS Grants Support Student Research

Psi Chi, the international honor society in psychology, in partnership with APS has awarded six grants to undergraduate student researchers and their faculty sponsors. Each student recipient of the 2015 Psi Chi/APS Summer Research Grant will receive a $3,500 stipend, and each faculty sponsor will receive a $1,500 stipend.

Creativity and Insight Problem Solving in Children Helena Shoplik, Saint Vincent College Mark Rivardo, faculty sponsor

Perceived Religiosity and Motive Impact Attitudes Toward Terrorism Adam Norris, University of Oregon Azim Shariff, faculty sponsor

Do Wild Belugas (Delphinapterus leucas) Socialize and Play Differently Than Captive Belugas? Sara Guarino, St. Mary’s University Heather Hill, faculty sponsor

The Role of Stress-Related Growth and Coping Processes as Predictors of Depression in South Asians Diagnosed With HIV/AIDS Tina Yu, University of Michigan APS Fellow Edward C. Chang, faculty sponsor

Knowledge Updating in Younger and Older Adults Natalia Ramirez, South Dakota State University Tyler Miller,…


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Bringing Computational Modeling to Psychiatry

It can be challenging to understand the complex interactions and relationships that result in the development and maintenance of psychiatric problems; however, computational modeling — the integration of mathematics, computers, and simulations to model complex systems — provides a new tool to help describe clinical dysfunction.

A special series in the May issue of Clinical Psychological Science, introduced by journal editor Alan Kazdin and special series guest editor Tiago V. Maia, brings together articles illustrating the diverse range of applications of computational modeling to psychiatry.

Editor’s Introduction to the Special Series: Computational Psychiatry Alan E. Kazdin

Introduction to the Series on Computational Psychiatry Tiago V. Maia

Model-Based Cognitive Neuroscience Approaches to Computational Psychiatry: Clustering and Classification Thomas V. Wiecki, Jeffrey Poland, and Michael J. Frank

Decision-Theoretic Psychiatry Quentin J. M. Huys, Marc Guitart-Masip, Raymond J. Dolan, and Peter Dayan



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Memory Athletes and Researchers Collaborate to Dissect Feats of Memory

XMTSome of us have a gift for memorization and recall — think Sherlock Holmes. The fictional Holmes was portrayed as having a natural gift, but others train their memories using mnemonic techniques. Although the general principles have been known for hundreds of years, modern mnemonists refine them and adapt them. What cognitive abilities and training permit people to recall 80 random numbers after studying them for less than 60 seconds or to memorize the order of a shuffled deck of cards in under 30 seconds?

Over the weekend of May 2–3, 24 memory athletes gathered at the 2nd Annual Extreme Memory Tournament (XMT) in San Diego as part of a contest sponsored…


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A Gathering of Champions

You’ve read their textbooks and seen their work cited. Now you have a chance to meet them face-to-face. At the 2015 APS Annual Convention in New York City, the APS Student Caucus will host its annual “Champions of Psychological Science” event, which provides the unique opportunity for student affiliates to talk in an informal setting with highly respected and well-known psychological scientists.


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