terça-feira, fevereiro 21, 2006

Escolher sem reconhecer

"Preferring one taste over another without recognizing either", artigo de Ralph Adolphs, Daniel Tranel, Michael Koenigs e António R. Damásio
publicado na "Nature neuroscience" de Julho de 2005
«Stimuli can be discriminated without being consciously perceived and can be preferred without being remembered. Here we report a subject with a previously unknown dissociation of abilities: a strong behavioral preference for the taste of sugar over saline, despite a complete failure of recognition. The pattern of brain damage responsible for the dissociation suggests that reliable behavioral choice among tastes can occur in the absence of the gustatory cortex necessary for taste recognition.»