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Titolo:
EVENT-RELATED POTENTIAL CORRELATES OF TRANSIENT ATTENTION SHIFTS TO COLOR AND LOCATION
Autore:
EIMER M;
Indirizzi:
UNIV MUNICH,INST PSYCHOL,LEOPOLDSTR 13 D-80802 MUNICH GERMANY
Titolo Testata:
Biological psychology
fascicolo: 2, volume: 41, anno: 1995,
pagine: 167 - 182
SICI:
0301-0511(1995)41:2<167:EPCOTA>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
SELECTIVE ATTENTION; BRAIN POTENTIALS; HEMISPHERIC-DIFFERENCES; SPATIAL ATTENTION; STIMULI; CONJUNCTIONS; ORIENTATION; SEARCH; SIZE; TASK;
Keywords:
ATTENTION; COLOR; SPATIAL; EVENT-RELATED POTENTIAL; NI; PI;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Citazioni:
29
Recensione:
Indirizzi per estratti:
Citazione:
M. Eimer, "EVENT-RELATED POTENTIAL CORRELATES OF TRANSIENT ATTENTION SHIFTS TO COLOR AND LOCATION", Biological psychology, 41(2), 1995, pp. 167-182

Abstract

Effects of selectively attending to specific combinations of stimuluslocation and color were measured by means of event-related brain potentials in a trial-by-trial cueing paradigm. A symbolic precue was presented at the beginning of each trial indicating the response-relevant position and color of an upcoming imperative stimulus. Responses were required to infrequent target stimuli of the relevant color appearing at the cued location. Stimuli at attended locations elicited enhanced posterior N1 components as well as enhanced negativities at midline electrodes. No P1 enhancement was found for stimuli at the attended location. Attended color stimuli elicited a broad negativity starting about 220 ms that tended to be larger for stimuli presented at attended locations. These results show that transient attention shifts to non-spatial features like color are reflected by event-related potential (ERP) effects comparable to the effects measured under sustained attentionconditions. Transient spatial attention yields earlier and larger ERPeffects than transient attention to color and may modulate the ERP effects of non-spatial attention.

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Documento generato il 07/04/20 alle ore 22:55:40