Interactions between motion and form processing in the human visual system

Mather, George and Pavan, Andrea and Marotti, Rosilari Bellacosa and Campana, Gianluca and Casco, Clara (2013) Interactions between motion and form processing in the human visual system. FRONTIERS IN COMPUTATIONAL NEUROSCIENCE, 7. p. 65. ISSN 1662-5188

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Abstract

The predominant view of motion and form processing in the human visual system assumes that these two attributes are handled by separate and independent modules. Motion processing involves filtering by direction-selective sensors, followed by integration to solve the aperture problem. Form processing involves filtering by orientation-selective and sizes elective receptive fields,followed by integration to encode object shape. It has long been known that motion signal scan influence form processing in the well known Gestalt principle of common ate; texture elements which share a common motion property are grouped into a single contour or texture region. However, recent research in psycho physics and neuroscience indicates that the influence of form signal son motion processing is more extensive than previously thought. First, the salience and apparent direction of moving lines depend son how the local orientation and direction of motion combine to match the receptive field properties of motion selective neurons. Second, orientation signals generated by "motion-streaks" influence motion processing; motion sensitivity, apparent direction and adaptation are affected by simultaneously present orientation signals. Third, form signals generated by human body shape influencebio logical motion processing,as revealed by studies using point-light motion stimuli. Thus,form-motion integration seems to occurat several different levels of cortical processing, from V1 to STS.

Item Type: Article
Uncontrolled Keywords: SUPERIOR TEMPORAL SULCUS; OPTIC FLOW STIMULI; BIOLOGICAL MOTION; TRANSPARENT MOTION; MACAQUE MONKEY; RECEPTIVE-FIELDS; MST NEURONS; AREA MT; DIRECTION SELECTIVITY; EXPANSION CONTRACTION; motion sensitivity; motion-streaks; motion perception; motion-form interactions; biological motion
Subjects: 100 Philosophy & psychology > 150 Psychology
Divisions: Human Sciences > Institut für Psychologie
Depositing User: Petra Gürster
Date Deposited: 04 Jun 2020 10:57
Last Modified: 04 Jun 2020 10:57
URI: https://pred.uni-regensburg.de/id/eprint/16656

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