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Right Hand or Left? How the Brain Solves a Perceptual Puzzle
When you see a picture of a hand, how do you know whether it’s a right or left hand? This “hand laterality” problem may seem obscure, but it reveals a lot about how the brain sorts out confusing perceptions. Now, a study which will be published in a forthcoming issue of Psychological Science, a journal published by the Association for Psychological Science, challenges the long-held consensus about how we solve this problem. “For decades, the theory was that you use your motor imagination,” says Shivakumar Viswanathan, who conducted the study with University of California Santa Barbara colleagues Courtney Fritz and Scott T. Grafton.
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A New Study Shows How to Boost the Power of Pain Relief, Without Drugs
Placebos reduce pain by creating an expectation of relief. Distractions relieve it by keeping the brain busy. When combined, they make for a potent pain reliever, a study shows.
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The Complex Relationship between Memory and Silence
People who suffer a traumatic experience often don’t talk about it, and many forget it over time. But not talking about something doesn’t always mean you’ll forget it; if you try to force yourself not to think about white bears, soon you’ll be imagining polar bears doing the polka. A group of psychological scientists explore the relationship between silence and memories in a new paper published in Perspectives on Psychological Science, a journal of the Association for Psychological Science. “There’s this idea, with silence, that if we don’t talk about something, it starts fading,” says Charles B. Stone of Université Catholique de Louvain in Belgium, an author of the paper.
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Facebook is Not Such a Good Thing for Those with Low Self-Esteem
In theory, the social networking website Facebook could be great for people with low self-esteem. Sharing is important for improving friendships. But in practice, people with low self-esteem seem to behave counterproductively, bombarding their friends with negative tidbits about their lives and making themselves less likeable, according to a new study which will be published in Psychological Science, a journal of the Association for Psychological Science. “We had this idea that Facebook could be a really fantastic place for people to strengthen their relationships,” says Amanda Forest, a graduate student at the University of Waterloo. She cowrote the new study with her advisor, Joanne Wood.
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The Pupils are the Windows to the Mind
The eyes are the window into the soul—or at least the mind, according to a new paper published in Perspectives on Psychological Science, a journal of the Association for Psychological Science. Measuring the diameter of the pupil, the part of the eye that changes size to let in more light, can show what a person is paying attention to. Pupillometry, as it’s called, has been used in social psychology, clinical psychology, humans, animals, children, infants—and it should be used even more, the authors say. The pupil is best known for changing size in reaction to light.
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The Amygdala And Fear Are Not The Same Thing
In a 2007 episode of the television show Boston Legal, a character claimed to have figured out that a cop was racist because his amygdala activated - displaying fear, when they showed him pictures of black people. This link between the amygdala and fear – especially a fear of others unlike us, has gone too far, not only in pop culture, but also in psychological science, say the authors of a new paper which will be published in the February issue of Current Directions in Psychological Science, a journal of the Association for Psychological Science. Indeed, many experiments have found that the amygdala is active when people are afraid.