The Perception of Translational Motion
In response to translations of the head, the linear vestibulo‐ocular reflex (LVOR) produces compensatory eye movements that are high‐pass in nature, with a declining response magnitude and an increasing phase lead with declining stimulus frequency. Perception of head translation, however, is reporte...
Saved in:
Published in | Annals of the New York Academy of Sciences Vol. 1164; no. 1; pp. 222 - 228 |
---|---|
Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Malden, USA
Blackwell Publishing Inc
01.05.2009
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | In response to translations of the head, the linear vestibulo‐ocular reflex (LVOR) produces compensatory eye movements that are high‐pass in nature, with a declining response magnitude and an increasing phase lead with declining stimulus frequency. Perception of head translation, however, is reported to be robust at much lower frequency than predicted by the LVOR, causing speculation that the vestibular processing underlying reflex and perceptual responses are different. Direct comparison of these two responses across a large frequency range proves problematic, in part because of difficulties encountered in the assessment of perception at high frequency, and confounding variables at low frequency. We used innovative techniques to measure psychophysical responses to translation, and find strong similarity to the LVOR. These include experiments in which motion cues were limited to those of an inertial nature, and conclude that the vestibular system comprises only one input to perceptual mechanisms related to linear motion, and this is supplemented (particularly at low frequency) by somatic and cognitive cues. |
---|---|
Bibliography: | ArticleID:NYAS03771 istex:A848954EABB9F0DFEC7358E5C2200648A564F193 ark:/67375/WNG-Q3H4KC0R-0 Present affiliation: Drexel University College of Medicine, Philadelphia, Pennsylvania, USA. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 |
ISSN: | 0077-8923 1749-6632 1930-6547 |
DOI: | 10.1111/j.1749-6632.2009.03771.x |