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J Neurophysiol (December 21, 2005). doi:10.1152/jn.01017.2005
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Submitted on September 27, 2005
Accepted on December 17, 2005

Differences in the accuracy of human visuospatial memory after yaw and roll rotations

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

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

* To whom correspondence should be addressed. E-mail: eliana{at}cabernet.wustl.edu.

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. But the presence of some cues, such as gravity, may not be used to the same extent by different axes of motion (e.g., yaw versus 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.




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