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Attention Affects the Stereoscopic Depth Aftereffect

Rose, David and Bradshaw, Mark F and Hibbard, Paul B (2003) 'Attention Affects the Stereoscopic Depth Aftereffect.' Perception, 32 (5). pp. 635-640. ISSN 0301-0066

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Abstract

<jats:p> ‘Preattentive’ vision is typically considered to include several low-level processes, including the perception of depth from binocular disparity and motion parallax. However, doubt was cast on this model when it was shown that a secondary attentional task can modulate the motion aftereffect (Chaudhuri, 1990 Nature344 60–62). Here we investigate whether attention can also affect the depth aftereffect (Blakemore and Julesz, 1971 Science171 286–288). Subjects adapted to stationary or moving random-dot patterns segmented into depth planes while attention was manipulated with a secondary task (character processing at parametrically varied rates). We found that the duration of the depth aftereffect can be affected by attentional manipulations, and both its duration and that of the motion aftereffect varied with the difficulty of the secondary task. The results are discussed in the context of dynamic feedback models of vision, and support the penetrability of low-level sensory processes by attentional mechanisms. </jats:p>

Item Type: Article
Uncontrolled Keywords: Humans; Depth Perception; Figural Aftereffect; Motion Perception; Attention; Vision, Binocular; Adaptation, Ocular; Time Factors
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Faculty of Science and Health
Faculty of Science and Health > Psychology, Department of
Faculty of Social Sciences
Faculty of Social Sciences > Institute for Social and Economic Research
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 13 Feb 2015 21:26
Last Modified: 15 Jan 2022 00:53
URI: http://repository.essex.ac.uk/id/eprint/12525

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