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Titolo:
MOTION CAPTURE CHANGES TO INDUCED MOTION AT HIGHER LUMINANCE CONTRASTS, SMALLER ECCENTRICITIES, AND LARGER INDUCER SIZES
Autore:
MURAKAMI I; SHIMOJO S;
Indirizzi:
UNIV TOKYO,DEPT PSYCHOL,DIV HUMANITIES,7-3-1 HONGO,BUNKYO KU TOKYO 113 JAPAN UNIV TOKYO,COLL ARTS & SCI,DEPT PSYCHOL,MEGURO KU TOKYO 153 JAPAN
Titolo Testata:
Vision research
fascicolo: 15, volume: 33, anno: 1993,
pagine: 2091 - 2107
SICI:
0042-6989(1993)33:15<2091:MCCTIM>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
TEMPORAL VISUAL AREA; RANDOM-DOT-PATTERNS; CLASSICAL RECEPTIVE-FIELD; PURSUIT EYE-MOVEMENTS; CAT STRIATE NEURONS; PERIPHERAL-VISION; APPARENT MOTION; 2-DIMENSIONAL PATTERNS; MAGNIFICATION FACTOR; PERCEIVED VELOCITY;
Keywords:
MOTION CAPTURE; INDUCED MOTION; CENTER-SURROUND ANTAGONISM; SCALING FACTOR; MOTION CONTRAST;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
78
Recensione:
Indirizzi per estratti:
Citazione:
I. Murakami e S. Shimojo, "MOTION CAPTURE CHANGES TO INDUCED MOTION AT HIGHER LUMINANCE CONTRASTS, SMALLER ECCENTRICITIES, AND LARGER INDUCER SIZES", Vision research, 33(15), 1993, pp. 2091-2107

Abstract

In the stimulus configuration for ''motion capture'' phenomenon, we varied luminance contrast of the center disk (target), eccentricity andstimulus size. The subjects had to judge the direction of perceived target motion. We found that motion capture changed to induced motion (the direction of illusory motion was reversed) at smaller eccentricities and larger stimulus sizes. At intermediate eccentricities, motion capture changed to induced motion with increasing luminance contrast ofthe target. By using magnitude estimation, we also found that even a luminance-defined target was captured (''homochromatic motion capture'') and that a moving target was captured by a stationary inducer (''position capture''). Both motion and position capture effects were commonly observed at lower luminance contrasts of the target, larger eccentricities and smaller sizes. From these results, we propose a model of center-surround antagonistic motion contrast detectors in motion processing.

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Documento generato il 24/09/20 alle ore 21:25:46