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Brain detects happiness more quickly than sadness
Date:6/17/2009

the international debate in cognitive-emotional neuroscience in terms of how to define the exact way in which human beings process these facial expressions.

People make deductions from the expressions on people's faces. "These inferences can strongly influence election results or the sentences given in trials, and have been studied before in fields such as criminology and the pseudoscience of physiognomy", the neuroscientist tells SINC.

Two theories are currently "competing" to explain the pattern of cerebral asymmetry in processing emotions. The older one postulates the dominance of the right hemisphere in the processing of emotions, while the second is based on the approach-withdrawal hypothesis, which holds that the pattern of cerebral asymmetry depends upon the emotion in question, in other words that each hemisphere is better at processing particular emotions (the right, withdrawal, and the left, approach).

"Today there is scientific evidence in favour of both these theories, but there is a certain consensus in favour of the lateralisation of emotional processing predicted by the approach-withdrawal hypothesis", concludes Aznar-Casanova.


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Contact: SINC
info@plataformasinc.es
34-91-425-1820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert

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