Document Detail

Perception of stationary and moving sound following unilateral cortectomy.
MedLine Citation:
PMID:  19022269     Owner:  NLM     Status:  MEDLINE    
The perception of motion is an essential prerequisite to responding adequately to the dynamic aspects of sensory information in the environment. The neural substrates of auditory motion processing are, at present, still a matter of debate. It has been hypothesized that motion information is, as in the visual system, processed separately from other aspects of auditory information, such as stationary location. Here we report data on auditory perception of stationary and motion stimuli from a subject with right-sided resection of the anterior temporal-lobe region including medial aspects of Heschl's gyrus, and from three subjects with unilateral (right-sided or left-sided) hemispherectomy. All these subjects had undergone cortectomy decades earlier. The subjects with hemispherectomy were completely unable to perceive auditory motion, but showed slight to moderate deficits in judging stationary location. The subject with temporal lobectomy exhibited quite similar stationary auditory deficits as found in the subjects with hemispherectomy, but was completely normal in judging auditory motion. Thus, there was a clear dissociation of the effects of unilateral temporal lobectomy and hemispherectomy on auditory motion perception. Collectively, these findings suggest that the unilateral anterior temporal-lobe region plays a significant role in the analysis of stationary, but not moving, sound. One may assume that the cortical "motion network" is distinct from the "stationary network", and is located either in the most posterior aspects of temporal lobe, or in non-temporal, most likely parietal, areas.
Jörg Lewald; Sören Peters; Michael C Corballis; Markus Hausmann
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-10-30
Journal Detail:
Title:  Neuropsychologia     Volume:  47     ISSN:  0028-3932     ISO Abbreviation:  Neuropsychologia     Publication Date:  2009 Mar 
Date Detail:
Created Date:  2009-03-02     Completed Date:  2009-04-27     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0020713     Medline TA:  Neuropsychologia     Country:  England    
Other Details:
Languages:  eng     Pagination:  962-71     Citation Subset:  IM    
University of Dortmund, Ardeystr. 67, D-44139 Dortmund, Germany.
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MeSH Terms
Acoustic Stimulation / methods
Anterior Temporal Lobectomy / methods
Brain Mapping
Differential Threshold / physiology
Functional Laterality / physiology*
Middle Aged
Motion Perception / physiology*
Sound Localization / physiology*
Temporal Lobe / physiopathology*,  surgery
Time Factors

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