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Heading perception and the allocation of attention

Wann, John P., Swapp, David and Rushton, Simon K. 2000. Heading perception and the allocation of attention. Vision Research 40 (18) , pp. 2533-2543. 10.1016/S0042-6989(00)00115-2

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Abstract

A central theme in previous studies of heading judgements has been whether the retinal flow field can be decomposed to recover the translation component of locomotion when flow also contains the effects of gaze rotation. We explored not just the effect of moving gaze, but also moving attention away from the locomotor path by presenting the case of fixating a road sign and completing different attentional tasks during locomotion. Heading errors increased significantly with attentional load, in the absence of extra-retinal gaze information. When we introduced extra-retinal gaze information with the same tasks this resulted in a significant improvement in heading judgements. These results lead us to question whether the decomposition argument translates to real-world judgements of locomotor heading. If observers need to closely attend to roadside information it seems that decomposition is ineffective, whereas if they have the latitude to alternate gaze it is unnecessary.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Subjects: B Philosophy. Psychology. Religion > BF Psychology
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
R Medicine > RE Ophthalmology
Uncontrolled Keywords: Optic flow; Motion; Heading; Attention; Pursuit eye movement
Publisher: Elsevier
ISSN: 0042-6989
Last Modified: 04 Jun 2017 03:53
URI: http://orca.cf.ac.uk/id/eprint/28688

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