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Working memory processes show different degrees of lateralization: Evidence from event-related potentials

Talsma D., , Wijers A.A., , Klaver P., and Mulder G., (2001) Working memory processes show different degrees of lateralization: Evidence from event-related potentials Psychophysiology, 38 (3). pp. 425-439.

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Abstract

This study aimed to identify different processes in working memory, using event-related potentials (ERPs) and response times. Abstract polygons were presented for memorization and subsequent recall in a delayed matching-to-sample paradigm. Two polygons were presented bilaterally for memorization and a cue indicated whether one (and if so, which one of the two) or both polygons bad to be memorized. A subsequent test figure was presented unilaterally to the left or right visual field and had to be compared with the memorized figure(s). ERP results suggested that memorization takes place in a visual buffer in contralateral posterior brain areas, whereas identification of the test stimulus as a target appears to be mainly a left hemispheric process. Increased response times were found for nontarget test stimuli as compared to targets, and for target test stimuli that were presented contralaterally with respect to the location of the memorized stimulus. In addition, response times were slower when two figures were memorized than when only one was memorized.

Item Type: Article
Authors :
NameEmailORCID
Talsma D., UNSPECIFIEDUNSPECIFIED
Wijers A.A., UNSPECIFIEDUNSPECIFIED
Klaver P., UNSPECIFIEDUNSPECIFIED
Mulder G., UNSPECIFIEDUNSPECIFIED
Date : 2001
Identification Number : https://doi.org/10.1017/S0048577201991450
Uncontrolled Keywords : ERPs, Lateralization, N2pc, Visual working memory
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 10:41
Last Modified : 17 May 2017 10:41
URI: http://epubs.surrey.ac.uk/id/eprint/828803

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