Chapter

Temporal Dynamics in Visual Perception

Michael Spivey

in The Continuity of Mind

Published in print December 2006 | ISBN: 9780195170788
Published online September 2007 | e-ISBN: 9780199786831 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195170788.003.0008
 Temporal Dynamics in Visual Perception

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This chapter starts out by contrasting the static image-processing tradition in vision research to the moving-observer tradition in ecological psychology. As visual neuroscience and computer vision began to test awake behaving monkeys and robots, respectively, instead of motionless observers, some of the most vexing problems of image processing melted away. Feedback projections from higher visual brain areas down to lower visual brain areas appear to exert a goal-oriented tuning of the perceptual process. Moreover, oculomotor processes are shown to play a role in perceptual decisions, suggesting a blurring of the lines between visual perception and visual cognition and visuomotor processes. The chapter focuses especially on visual search processes and simulations of linear increases in reaction time resulting from a parallel-processing model.

Keywords: vision; visual neuroscience; computer vision; re-entrant processes; eye movements; visual attention; filling in; visual search; localist attractor networks

Chapter.  11142 words.  Illustrated.

Subjects: Neuropsychology

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