UPDATING VISUAL SPACE WHEN ROTATING THE HEAD DURING WHOLE-BODY DISPLACEMENTS
In this experiment, the authors studied subjects' capacity to determine the postion of a fixed target after varying head-in-space positions. The subject sat on a chair positioned at the centre of a semi-circular black cylinder. The chair could be rotated by the examiner about the vertical axis. Subjects were instructed to gaze at a straight-ahead target and then to indicate the perceived position of the target after head-trunk rotations. Subjects were found to be able to retrieve the position of the target when their head remained stationary: but when the subjects were rotated during active head rotations, their precision in target position estimation was markedly decreased. Overall, the results suggest that cervical signals are likely to be the source of information that allows accurate coding of target position after head rotations when the trunk remains stationary. The finding highlights the danger that a driver may encounter during non-instrumental navigation in the dark. (A) For the covering abstract see ITRD E106152.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0080436714
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Corporate Authors:
The Boulevard, Langford Lane
Kidlington, Oxford United Kingdom OX5 1GB -
Authors:
- Blouin, J
- VERCHER, J-L
- GAUTHIER, G M
- LABROUSSE, L
- Simoneau, M
- Publication Date: 1999
Language
- English
Media Info
- Features: References;
- Pagination: p. 329-36
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Serial:
- VISION IN VEHICLES - VII
- Publisher: Elsevier
Subject/Index Terms
- TRT Terms: Anthropometry; Anthropometry; Head; Mathematical analysis; Motion; Perception; Rotation
- ITRD Terms: 6471: Analysis (math); 2055: Human body; 5483: Movement; 2229: Perception; 6406: Rotation
- Subject Areas: Safety and Human Factors; Society;
Filing Info
- Accession Number: 00799765
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- ISBN: 0-08-043671-4
- Files: ITRD
- Created Date: Oct 6 2000 12:00AM