Spritual. Emotion reversed in left-handers brains. The way we use our hands may determine how emotions are organized in our brains, according to a recent study published in PLoS ONE by psychologists Geoffrey Brookshire and Daniel Casasanto of The New School for Social Research in New York.
Motivation, the drive to approach or withdraw from physical and social stimuli, is a basic building block of human emotion. For decades, scientists have believed that approach motivation is computed mainly in the left hemisphere of the brain, and withdraw motivation in the right hemisphere. Brookshire and Casasanto's study challenges this idea, showing that a well-established pattern of brain activity, found across dozens of studies in right-handers, completely reverses in left-handers.
The study used electroencepahlography (EEG) to compare activity in participants' right and left hemispheres during rest. The 29 Healthiest Foods on the Planet. Medical References. Human Body Systems Theme. Secrets of Body Language. Cancer Biology – Inside Cancer: A Multimedia Guide to Cancer. Dynamic Gene. Science & Nature - Human Body and Mind - Interactive Body.
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