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J Neurophysiol 95: 2692-2697, 2006. First published December 21, 2005; doi:10.1152/jn.01017.2005
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Differences in the Accuracy of Human Visuospatial Memory After Yaw and Roll Rotations

Eliana M. Klier1, Bernhard J. M. Hess2 and Dora E. Angelaki1

1Department of Neurobiology, Washington University School of Medicine, St. Louis, Missouri 2Department of Neurology, Zurich University Hospital, Zurich, Switzerland

Submitted 27 September 2005; accepted in final form 17 December 2005

Our ability to keep track of objects in the environment, even as we move, has been attributed to various cues including efference copies, vestibular signals, proprioception, and gravitational cues. However, the presence of some cues, such as gravity, may not be used to the same extent by different axes of motion (e.g., yaw vs. roll). We tested whether changes in gravitational cues can be used to improve visuospatial updating performance for yaw rotations as previously shown for roll. We found differences in updating for yaw and roll rotations in that yaw updating is not only associated with larger systematic errors but is also not facilitated by gravity in the same way as roll updating.

Address for reprint requests and other correspondence: E. M. Klier, Dept. of Neurobiology, Box 8108, Washington Univ. School of Medicine, 660 South Euclid Ave., St. Louis, MO 63110 (E-mail: eliana{at}cabernet.wustl.edu)




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