QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

HOME  |   SEARCH  |   ARCHIVE  |   SUBSCRIBE  |   CONTACT  |   HELP

The Journal of Neuroscience, October 20, 2004, 24(42):9291-9302; doi:10.1523/JNEUROSCI.2671-04.2004

This Article Full Text Full Text (PDF) Supplemental data A correction has been published Submit an eLetter Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in 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 Web of Science (13) Citing Articles via Google Scholar Google Scholar Articles by Vliegen, J. Articles by Van Opstal, A. J. Search for Related Content PubMed PubMed Citation Articles by Vliegen, J. Articles by Van Opstal, A. J.

 Previous Article  |  Next Article 

Behavioral/Systems/Cognitive
Dynamic Sound Localization during Rapid Eye-Head Gaze Shifts

Joyce Vliegen, Tom J. Van Grootel, and A. John Van Opstal

Department of Medical Physics and Biophysics, Institute for Neuroscience, Radboud University Nijmegen, 6525 EZ Nijmegen, The Netherlands

Human sound localization relies on implicit head-centered acoustic cues. However, to create a stable and accurate representation of sounds despite intervening head movements, the acoustic input should be continuously combined with feedback signals about changes in head orientation. Alternatively, the auditory target coordinates could be updated in advance by using either the preprogrammed gaze-motor command or the sensory target coordinates to which the intervening gaze shift is made ("predictive remapping"). So far, previous experiments cannot dissociate these alternatives. Here, we study whether the auditory system compensates for ongoing saccadic eye and head movements in two dimensions that occur during target presentation. In this case, the system has to deal with dynamic changes of the acoustic cues as well as with rapid changes in relative eye and head orientation that cannot be preprogrammed by the audiomotor system. We performed visual-auditory double-step experiments in two dimensions in which a brief sound burst was presented while subjects made a saccadic eye-head gaze shift toward a previously flashed visual target. Our results show that localization responses under these dynamic conditions remain accurate. Multiple linear regression analysis revealed that the intervening eye and head movements are fully accounted for. Moreover, elevation response components were more accurate for longer-duration sounds (50 msec) than for extremely brief sounds (3 msec), for all localization conditions. Taken together, these results cannot be explained by a predictive remapping scheme. Rather, we conclude that the human auditory system adequately processes dynamically varying acoustic cues that result from self-initiated rapid head movements to construct a stable representation of the target in world coordinates. This signal is subsequently used to program accurate eye and head localization responses.

Key words: auditory system; human; reference frames; gaze control; models; remapping

---

Received July 6, 2004; revised September 1, 2004; accepted September 1, 2004.

This article has been cited by other articles:

				C. F. Altmann, E. Wilczek, and J. Kaiser Processing of Auditory Location Changes after Horizontal Head Rotation J. Neurosci., October 14, 2009; 29(41): 13074 - 13078. [Abstract] [Full Text] [PDF]

				D. J. Tollin, J. L. Ruhland, and T. C. T. Yin The Vestibulo-Auricular Reflex J Neurophysiol, March 1, 2009; 101(3): 1258 - 1266. [Abstract] [Full Text] [PDF]

				A. J King Visual influences on auditory spatial learning Phil Trans R Soc B, February 12, 2009; 364(1515): 331 - 339. [Abstract] [Full Text] [PDF]

				A. Z. Khan, G. Blohm, R. M. McPeek, and P. Lefevre Differential Influence of Attention on Gaze and Head Movements J Neurophysiol, January 1, 2009; 101(1): 198 - 206. [Abstract] [Full Text] [PDF]

				S. M. C. I. van Wetter and A. J. van Opstal Perisaccadic Mislocalization of Visual Targets by Head-Free Gaze Shifts: Visual or Motor? J Neurophysiol, October 1, 2008; 100(4): 1848 - 1867. [Abstract] [Full Text] [PDF]

				J. Leung, D. Alais, and S. Carlile Compression of auditory space during rapid head turns PNAS, April 29, 2008; 105(17): 6492 - 6497. [Abstract] [Full Text] [PDF]

				P. Binda, A. Bruno, D. C. Burr, and M. C. Morrone Fusion of Visual and Auditory Stimuli during Saccades: A Bayesian Explanation for Perisaccadic Distortions J. Neurosci., August 8, 2007; 27(32): 8525 - 8532. [Abstract] [Full Text] [PDF]

				R. A. Berman, L. M. Heiser, C. A. Dunn, R. C. Saunders, and C. L. Colby Dynamic Circuitry for Updating Spatial Representations. III. From Neurons to Behavior J Neurophysiol, July 1, 2007; 98(1): 105 - 121. [Abstract] [Full Text] [PDF]

				E. A. Whitchurch and T. T. Takahashi Combined Auditory and Visual Stimuli Facilitate Head Saccades in the Barn Owl (Tyto alba) J Neurophysiol, August 1, 2006; 96(2): 730 - 745. [Abstract] [Full Text] [PDF]

				J. Vliegen, T. J. Van Grootel, and A. J. Van Opstal Gaze Orienting in Dynamic Visual Double Steps J Neurophysiol, December 1, 2005; 94(6): 4300 - 4313. [Abstract] [Full Text] [PDF]

Home  |   Search  |   Archive  |   Subscribe  |   Contact  |   Help