Our brains detect the expressions of happiness and surprise faster than those of sadness or fear, according to a study.
an international team of spanish and brazellian researchers made a study on this. The research team worked with 80 psychology students—65 women and 15 men—to analyse the differences between their cerebral hemispheres using the "divided visual field" technique, which is based on the anatomical properties of the visual system.
Appearing in the journal Laterality, the findings suggest that the right hemisphere performs better in processing emotions.
"However, this advantage appears to be more evident when it comes to processing happy and surprised faces than sad or frightened ones," the researcher points out.
"Positive expressions, or expressions of approach, are perceived more quickly and more precisely than negative, or withdrawal, ones. So happiness and surprise are processed faster than sadness and fear," says Aznar-Casanova.
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