Hemispheric asymmetries in recognition memory for negative and neutral words

DSpace/Manakin Repository

Hemispheric asymmetries in recognition memory for negative and neutral words

Show simple item record

dc.contributor.author Oliveira, Jorge
dc.contributor.author Gamito, Pedro
dc.contributor.author Perea, Maria
dc.contributor.author Ladera, Valentina
dc.contributor.author Morais, Diogo
dc.contributor.author Rosa, Pedro J.
dc.contributor.author Saraiva, Tomaz
dc.date.accessioned 2012-04-04T11:45:58Z
dc.date.available 2012-04-04T11:45:58Z
dc.date.issued 2011
dc.identifier.issn 1647-7677
dc.identifier.uri http://hdl.handle.net/10437/2298
dc.description.abstract Federmeier 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. pt
dc.format application/pdf
dc.language.iso eng pt
dc.rights openAccess
dc.subject NEUROCIÊNCIAS pt
dc.subject PROCESSAMENTO DE INFORMAÇÃO pt
dc.subject MEMÓRIA pt
dc.title Hemispheric asymmetries in recognition memory for negative and neutral words pt
dc.type article pt


Files in this item

Files Size Format View
Hemispheric asy ... tive and neutral words.pdf 470.2Kb PDF View/Open

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Advanced Search

Browse

My Account