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The Continuity of Mind$
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Michael Spivey

Print publication date: 2006

Print ISBN-13: 9780195170788

Published to Oxford Scholarship Online: September 2007

DOI: 10.1093/acprof:oso/9780195170788.001.0001

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Temporal Dynamics in Visual Perception

Temporal Dynamics in Visual Perception

Chapter:
(p.207) 8 Temporal Dynamics in Visual Perception
Source:
The Continuity of Mind
Author(s):

Michael Spivey (Contributor Webpage)

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780195170788.003.0008

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

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