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Titolo:
EVENT-RELATED POTENTIAL RESPONSE TO ATTENDED AND UNATTENDED LOCATIONSIN AN INTERFERENCE TASK
Autore:
DRYSDALE KA; FULHAM WR; FINLAY DC;
Indirizzi:
UNIV NEWCASTLE,DEPT PSYCHOL CALLAGHAN NSW 2308 AUSTRALIA
Titolo Testata:
Biological psychology
fascicolo: 1, volume: 48, anno: 1998,
pagine: 1 - 19
SICI:
0301-0511(1998)48:1<1:EPRTAA>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
BILATERAL STIMULUS ARRAYS; INDEX FOCUSED ATTENTION; SELECTIVE ATTENTION; VISUAL-SEARCH; BRAIN POTENTIALS; INFORMATION; FIELD; DISCRIMINATION; COLOR;
Keywords:
SPATIAL CUEING; VISUAL ATTENTION; ERPS; INTERFERENCE TASK; BILATERAL PRESENTATION; VISUAL SEPARATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
K.A. Drysdale et al., "EVENT-RELATED POTENTIAL RESPONSE TO ATTENDED AND UNATTENDED LOCATIONSIN AN INTERFERENCE TASK", Biological psychology, 48(1), 1998, pp. 1-19

Abstract

Event-related potentials were measured in response to an interferencetask in which unattended stimulus items were compatible, incompatibleor neutral with regard to the attended stimulus items. Two stimulus items were presented simultaneously and bilaterally-one in each visual field. This allowed examination of the event-related potential waveform according to whether recording sites were contralateral to the attended or unattended location. The first experiment used sustained cueingwith 3.5 degrees separation between attended and unattended locations. Attentional modulation of the N1 was observed but not for the P1. Inthe second experiment, separation between attended and unattended locations was increased to 11.5 degrees. In both experiments, the hemisphere contralateral to the unattended material (unattended hemisphere) showed a greater negativity in the N2 latency range in the temporal regions to compatible and incompatible conditions compared to a neutral condition. These data are inconsistent with findings suggesting the filtering of material early in visual processing. (C) 1998 Elsevier Science B.V. All rights reserved.

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Documento generato il 21/09/20 alle ore 05:50:16