Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
MOTION PERCEPTION - FROM PHI TO OMEGA
Autore:
ROSE D; BLAKE R;
Indirizzi:
UNIV SURREY,DEPT PSYCHOL GUILDFORD GU2 5XH SURREY ENGLAND VANDERBILT UNIV,DEPT PSYCHOL NASHVILLE TN 37240
Titolo Testata:
Philosophical transactions-Royal Society of London. Biological sciences
fascicolo: 1371, volume: 353, anno: 1998,
pagine: 967 - 980
SICI:
0962-8436(1998)353:1371<967:MP-FPT>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
COHERENT MOTION; VISUAL-CORTEX; CURVATURE; CONTRAST; MACAQUE; DISCRIMINATION; INTEGRATION; INFORMATION; MECHANISMS; GRATINGS;
Keywords:
MOTION PERCEPTION; VISUAL PERCEPTION; OMEGA EFFECT; PHI MOTION; RANDOM DOTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
51
Recensione:
Indirizzi per estratti:
Citazione:
D. Rose e R. Blake, "MOTION PERCEPTION - FROM PHI TO OMEGA", Philosophical transactions-Royal Society of London. Biological sciences, 353(1371), 1998, pp. 967-980

Abstract

When human observers view dynamic random noise, such as television 'snow': through a curved or annular aperture, they experience a compelling illusion that the noise is moving smoothly and coherently around the curve (the 'omega effect'). In several series of experiments, we have investigated the conditions under which this effect occurs and the possible mechanisms that might cause it. We contrast the omega effect with 'phi motion: seen when an object suddenly changes position. Our conclusions are that the visual scene is first segmented into objects before a coherent velocity is assigned to the texture on each object's surface. The omega effect arises because there are motion mechanisms that deal specifically with object rotation and these interact with pattern mechanisms sensitive to curvature.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 04:35:24