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Titolo:
TEMPORAL INTEGRATION OF RANDOM-DOT APPARENT MOTION INFORMATION IN HUMAN CENTRAL VISION
Autore:
FREDERICKSEN RE; VERSTRATEN FAJ; VANDEGRIND WA;
Indirizzi:
MCGILL VIS RES CTR,687 PINE AVE W H4 14 MONTREAL H3A 1A1 PQ CANADA UNIV UTRECHT,UTRECHT BIOPHYS RES INST UTRECHT NETHERLANDS UNIV UTRECHT,DEPT COMPARAT PHYSIOL UTRECHT NETHERLANDS UNIV N CAROLINA,DEPT COMP SCI CHAPEL HILL NC 27515
Titolo Testata:
Vision research
fascicolo: 4, volume: 34, anno: 1994,
pagine: 461 - 476
SICI:
0042-6989(1994)34:4<461:TIORAM>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
MACAQUE VISUAL-CORTEX; SPATIAL WHITE NOISE; COHERENT MOTION; DETECTABILITY; SELECTIVITY; VELOCITY; SIGNALS; FIELD; RANGE; MT;
Keywords:
MOTION PERCEPTION; TEMPORAL INTEGRATION; DISPLACEMENT LIMITS; MOTION DETECTOR TUNING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
R.E. Fredericksen et al., "TEMPORAL INTEGRATION OF RANDOM-DOT APPARENT MOTION INFORMATION IN HUMAN CENTRAL VISION", Vision research, 34(4), 1994, pp. 461-476

Abstract

Human motion perception is assumed to be functionally described by anarray of bi-local detectors feeding later, higher order computationalstages. Using this model as a guide, improvement of spatio-temporal displacement sensitivity by temporal integration (summation) was measured in human central vision using random dot pattern apparent-motion stimuli. Our results agree with previous experiments with regard to improvement of. maximum perceivable spatial displacement but show that contrary to previous results the minimum perceivable spatial displacementcan be improved in a similar manner. Furthermore, stimulus duration is a more accurate predictor of sensitivity than the number of frames in the stimulus over a wide range of stimulus parameter values. Finally, our results indicate that temporal tuning of motion detectors is inversely related to the size of the spatial pattern displacement.

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Documento generato il 05/12/20 alle ore 01:32:07