Hemispheric asymmetries in recognition memory for negative and neutral words

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dc.contributor.authorOliveira, Jorge
dc.contributor.authorGamito, Pedro
dc.contributor.authorPerea, Maria
dc.contributor.authorLadera, Valentina
dc.contributor.authorMorais, Diogo
dc.contributor.authorRosa, Pedro Joel
dc.contributor.authorSaraiva, Tomaz
dc.contributor.institutionEscola de Psicologia e Ciências da Vida
dc.date.issued2011
dc.descriptionJournal of Eye Tracking, Visual Cognition and Emotion
dc.description.abstractFedermeier and Benjamin (2005) have suggested that semantic encoding for verbal information in the right hemisphere can be more effective when memory demands are higher. However, other studies (Kanske & Kotz, 2007) also suggest that visual word recognition differ in function of emotional valence. In this context, the present study was designed to evaluate the effects of retention level upon recognition memory processes for negative and neutral words. Sample consisted of 15 right-handed undergraduate portuguese students with normal or corrected to normal vision. Portuguese concrete negative and neutral words were selected in accordance to known linguistic capabilities of the right hemisphere. The participants were submitted to a visual half-field word presentation using a continuous recognition memory paradigm. Eye movements were continuously monitored with a Tobii T60 eye-tracker that showed no significant differences in fixations to negative and neutral words. Reaction times in word recognition suggest an overall advantage of negative words in comparison to the neutral words. Further analysis showed faster responses for negative words than for neutral words when were recognised at longer retention intervals for left-hemisphere encoding. Electrophysiological data through event related potentials revealed larger P2 amplitude over centro-posterior electrode sites for words studied in the left hemifield suggesting a priming effect for right-hemisphere encoding. Overall data suggest different hemispheric memory strategies for the semantic encoding of negative and neutral words.en
dc.description.statusNon peer reviewed
dc.formatapplication/pdf
dc.identifier.citationOliveira , J , Gamito , P , Perea , M , Ladera , V , Morais , D , Rosa , P J & Saraiva , T 2011 , ' Hemispheric asymmetries in recognition memory for negative and neutral words ' , Journal of Eye Tracking, Visual Cognition and Emotion .
dc.identifier.issn1647-7677
dc.language.isoeng
dc.publisherEdições Universitárias Lusófonas
dc.relation.ispartofJournal of Eye Tracking, Visual Cognition and Emotion
dc.rightsopenAccess
dc.subjectNEUROCIÊNCIAS
dc.subjectPROCESSAMENTO DE INFORMAÇÃO
dc.subjectMEMÓRIA
dc.subjectPSICOLOGIA
dc.subjectNEUROSCIENCES
dc.subjectINFORMATION PROCESSING
dc.subjectMEMORY
dc.subjectPSYCHOLOGY
dc.titleHemispheric asymmetries in recognition memory for negative and neutral wordsen
dc.typearticle

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Journal of Eye Tracking, Visual Cognition and Emotion nº 01 (2011)