HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) All Versions of this Article: 92/4/2622    most recent 00326.2004v1 Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (6) Citing Articles via Google Scholar Google Scholar Articles by Metzger, R. R. Articles by Groh, J. M. Search for Related Content PubMed PubMed Citation Articles by Metzger, R. R. Articles by Groh, J. M.

REPORT

Auditory Saccades From Different Eye Positions in the Monkey: Implications for Coordinate Transformations

Department of Psychological and Brain Sciences, Center for Cognitive Neuroscience, Dartmouth College, Hanover, New Hampshire 03755

Submitted 31 March 2004; accepted in final form 25 May 2004

Auditory spatial information arises in a head-centered coordinate frame, whereas the saccade command signals generated by the superior colliculus (SC) are thought to specify target locations in an eye-centered frame. However, auditory activity in the SC appears to be neither head- nor eye-centered but in a reference frame that is intermediate between both of these reference frames. This neurophysiological finding suggests that auditory saccades might not fully compensate for changes in initial eye position. Here, we investigated whether the accuracy of saccades to sounds is affected by initial eye position in rhesus monkeys. We found that, on average, a 12° horizontal shift in initial eye position produced only a 0.6 to 1.6° horizontal shift in the endpoints of auditory saccades made to targets at a range of locations along the horizontal meridian. This shift was similar in size to the modest influence of eye position on visual saccades. This virtually complete compensation for initial eye position implies that auditory activity in the SC is read out in a manner that is appropriate for generating accurate saccades to sounds.

This article has been cited by other articles:

				B. Razavi, W. E. O'Neill, and G. D. Paige Auditory Spatial Perception Dynamically Realigns with Changing Eye Position J. Neurosci., September 19, 2007; 27(38): 10249 - 10258. [Abstract] [Full Text] [PDF]

				L. C. Populin Monkey sound localization: head-restrained versus head-unrestrained orienting. J. Neurosci., September 20, 2006; 26(38): 9820 - 9832. [Abstract] [Full Text] [PDF]

				R. R. Metzger, N. T. Greene, K. K. Porter, and J. M. Groh Effects of reward and behavioral context on neural activity in the primate inferior colliculus. J. Neurosci., July 12, 2006; 26(28): 7468 - 7476. [Abstract] [Full Text] [PDF]

				O. A. Mullette-Gillman, Y. E. Cohen, and J. M. Groh Eye-Centered, Head-Centered, and Complex Coding of Visual and Auditory Targets in the Intraparietal Sulcus J Neurophysiol, October 1, 2005; 94(4): 2331 - 2352. [Abstract] [Full Text] [PDF]