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You’re Just One in 7 Billion!
Did you take a deep breath before pushing and shoving your way into a crowded train this morning? Stepped on a few toes or nerves perhaps? Phew, well, if you thought dodging elbows and trying to hop on that crowded morning rush hour train was bad, try thinking about this – the world’s population recently hit 7 billion and in an already crowded planet, that poses quite a problem. According to the United Nations Population Fund, the world’s population more than doubled just in the last fifty years. This staggering growth is certainly a cause for alarm and has scientists, economists and sociologists scrambling to find a solution to combat the problems that come with an overcrowded planet.
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Which Way You Lean—Physically—Affects Your Decision-Making
We’re not always aware of how we are making a decision. Unconscious feelings or perceptions may influence us. Another important source of information—even if we’re unaware of it—is the body itself. “Decision making, like other cognitive processes, is an integration of multiple sources of information—memory, visual imagery, and bodily information, like posture,” says Anita Eerland, a psychologist at Erasmus University Rotterdam in the Netherlands. In a new study, Eerland and colleagues Tulio Guadalupe and Rolf Zwaan found that surreptitiously manipulating the tilt of the body influences people’s estimates of quantities, such as sizes, numbers, or percentages.
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What the Brain Sees After the Eye Stops Looking
When we gaze at a shape and then the shape disappears, a strange thing happens: We see an afterimage in the complementary color. Now a Japanese study has observed for the first time an equally strange illusion: The afterimage appears in a “complementary” shape—circles as hexagons, and vice-versa. “The finding suggests that the afterimage is formed in the brain, not in the eye,” the author, Hiroyuki Ito of Kyushu University, wrote in an email. More specifically, the illusion is produced in the brain’s shape-processing visual cortex, not the eye’s light-receiving, message-sending retina.
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How We Create False Memories: Assessing Memory Performance in Older Adults
A study at Tufts University addresses the influence of age-related stereotypes on memory performance and memory errors in older adults.
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Psychologists Stress the Importance of Memory in Preventing Relapse after Therapy
Addictions, phobias, post-traumatic stress disorder—such painful and harmful problems are recalcitrant to treatment. In the clinic, a person may suppress the association between the stimulus and the response—say, a bar with ashtrays and smoking—by learning to pair the stimulus with a new memory not involving smoking. But once out in the world, faced with bars and ashtrays aplenty, he relapses into the old behavior. Some treatment aims at helping the patient avoid locations and stimuli that trigger the harmful behavior. A new article in Current Directions in Psychological Science, a journal published by the Association for Psychological Science, says this is not the most effective route.
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People Rationalize Situations They’re Stuck With, But Rebel When They Think There’s An Out
People who feel like they’re stuck with a rule or restriction are more likely to be content with it than people who think that the rule isn’t definite. The authors of a new study, which will be published in an upcoming issue of Psychological Science, a journal of the Association for Psychological Science, say this conclusion may help explain everything from unrequited love to the uprisings of the Arab Spring. Psychological studies have found two contradictory results about how people respond to rules. Some research has found that, when there are new restrictions, you rationalize them; your brain comes up with a way to believe the restriction is a good idea.
