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Titolo:
Attentional modulation in perception of visual motion events
Autore:
Watanabe, K; Shimojo, S;
Indirizzi:
CALTECH, Div Biol, Pasadena, CA 91125 USA CALTECH Pasadena CA USA 91125CALTECH, Div Biol, Pasadena, CA 91125 USA
Titolo Testata:
PERCEPTION
fascicolo: 9, volume: 27, anno: 1998,
pagine: 1041 - 1054
SICI:
0301-0066(1998)27:9<1041:AMIPOV>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
RANDOM-DOT PATTERNS; APPARENT MOTION; DISCRIMINATION; TASK; RESOLUTION; VELOCITY; OBJECTS; CAPTURE; MT; COOPERATIVITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
70
Recensione:
Indirizzi per estratti:
Indirizzo: Watanabe, K CALTECH, Div Biol, MC139-74, Pasadena, CA 91125 USA CALTECH MC139-74 Pasadena CA USA 91125 Pasadena, CA 91125 USA
Citazione:
K. Watanabe e S. Shimojo, "Attentional modulation in perception of visual motion events", PERCEPTION, 27(9), 1998, pp. 1041-1054

Abstract

Identical visual targets moving across each other with equal and constant speed can be perceived either to bounce off or to stream through each other. This bistable motion perception has been studied mostly in the context ofmotion integration. Since the perception of most ambiguous motion is affected by attention, there is the possibility of attentional modulation occurring in this case as well. We investigated whether distraction of attention from the moving targets would alter the relative frequency of each percept. During the observation of the streaming/bouncing motion event in the peripheral visual field, visual attention was disrupted by an abrupt presentation of a visual distracter at various timings and locations (experiment 1; exogenous distraction of attention) or by the demand of an additional discrimination task (experiments 2 and 3; endogenous distraction of attention). Both types of distractions of attention increased the frequency of the bouncing percept and decreased that of the streaming percept. These results suggest that attention may facilitate the perception of object motion as continuing in the same direction as in the past.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/09/20 alle ore 18:33:52