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Titolo:
MONOCULAR EGOCENTRIC DISTANCE INFORMATION GENERATED BY HEAD MOVEMENT
Autore:
BINGHAM GP; STASSEN MG;
Indirizzi:
INDIANA UNIV,DEPT PSYCHOL BLOOMINGTON IN 47405
Titolo Testata:
Ecological psychology
fascicolo: 3, volume: 6, anno: 1994,
pagine: 219 - 238
SICI:
1040-7413(1994)6:3<219:MEDIGB>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
APPARENT MOTION SEQUENCES; SMOOTHLY CURVED SURFACES; HAND MOTOR SYSTEMS; OPTICAL-FLOW; EYE-MOVEMENT; TEMPORAL CHARACTERISTICS; RHYTHMICAL MOVEMENTS; VISUAL INFORMATION; SPACE-PERCEPTION; OPTIMAL RESPONSE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social Sciences Citation Index
Citazioni:
100
Recensione:
Indirizzi per estratti:
Citazione:
G.P. Bingham e M.G. Stassen, "MONOCULAR EGOCENTRIC DISTANCE INFORMATION GENERATED BY HEAD MOVEMENT", Ecological psychology, 6(3), 1994, pp. 219-238

Abstract

How might definite spatial scale be determined on the basis of monocular optic flows? The evidence for the perception of distances in depthfrom optic flow indicates that head motion is essential for accurate performance. Accordingly, we propose a solution that entails the use of symmetries in the physically determined form of oscillatory head trajectories. The hypothesized solution is notable in two other respects. The first is the use of a time-dimensioned optic variable, tau (Lee, 1974). This strategy takes advantage of the fact that metric temporal scaling is preserved in optic flow. Second, somatosensory information about the amplitude of head motion is used to scale distance in intrinsic units. An alternative multimodal solution would require somatosensory information about velocity of head motion, but the evidence from studies of vestibulo-ocular reflex indicate that adequate velocity information may not be available. Finally, we discuss means for testing the proposed solution.

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Documento generato il 25/11/20 alle ore 04:07:46