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Titolo:
DETECTION OF TEMPORAL-ORDER OF NOISE-LIKE LUMINANCE FUNCTIONS
Autore:
SNIPPE HP; KOENDERINK JJ;
Indirizzi:
UNIV STIRLING,DEPT PSYCHOL STIRLING FK9 4LA SCOTLAND UNIV UTRECHT,UTRECHT BIOPHYS RES INST,BUYS BALLOT LAB UTRECHT NETHERLANDS
Titolo Testata:
Perception & psychophysics
fascicolo: 1, volume: 55, anno: 1994,
pagine: 28 - 41
SICI:
0031-5117(1994)55:1<28:DOTONL>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
RANDOM-DOT PATTERNS; PERIPHERAL VISUAL-FIELD; APPARENT MOTION; PERCEPTION; CONTRAST; DISCRIMINATION; ECCENTRICITY; DISPLACEMENT; VELOCITY; LIMITS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social Sciences Citation Index
Science Citation Index Expanded
Citazioni:
47
Recensione:
Indirizzi per estratti:
Citazione:
H.P. Snippe e J.J. Koenderink, "DETECTION OF TEMPORAL-ORDER OF NOISE-LIKE LUMINANCE FUNCTIONS", Perception & psychophysics, 55(1), 1994, pp. 28-41

Abstract

We study the capacities of human observers to time order light sources that emit dynamic noise, identical for the different light sources, except for an adjustable delay. There is a range of temporal delays for which human observers are perfectly able to perform this task, usingthe direction of the motion percept that is evoked by the stimulus asa cue. An optimal delay between light sources at which the observers are most robust against any deterioration of the stimulus is defined. We claim that optimal delays (15-25 msec) correspond to the time delayof a putative Reichardt correlation mechanism in human motion vision. Contrary to the ability of human observers to sense temporal correlations in noise sequences, observers are totally unable to detect anticorrelation between noise sequences. This inability rules out motion opponency as a viable model for human front-end (''early'') motion vision.

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Documento generato il 26/09/20 alle ore 05:05:47