Functional topography of the low postcentral area

Boling, Warren, Reutens, David C. and Olivier, Andre (2002) Functional topography of the low postcentral area. Journal of Neurosurgery, 97 2: 388-395. doi:10.3171/jns.2002.97.2.0388


Author Boling, Warren
Reutens, David C.
Olivier, Andre
Title Functional topography of the low postcentral area
Journal name Journal of Neurosurgery   Check publisher's open access policy
ISSN 0022-3085
1933-0693
Publication date 2002-08
Sub-type Article (original research)
DOI 10.3171/jns.2002.97.2.0388
Volume 97
Issue 2
Start page 388
End page 395
Total pages 8
Place of publication Rolling Meadows, IL, United States
Publisher American Association of Neurological Surgeons
Language eng
Formatted abstract
Object. The goal of this study was to establish a reliable method for identification of face and tongue sensory function in the lower central area.
Methods. All positron emission tomography (PET) clinical activation studies performed over a 3-year period at the Montreal Neurological Institute and Hospital were evaluated by coregistering the PET images with three-dimensional reconstructions of magnetic resonance images obtained in the same patients. In addition to stereotactic coordinates and measurements based on distance from the sylvian fissure, gyral and sulcal landmarks were analyzed to determine their reliability in localizing the sensory areas of the tongue and lower face.
The convolutional anatomy of the central area is an important guide to the identification of function. The sensory area of the tongue is recognized as a triangular region at the base of the postcentral gyrus; the sensory area of the lower face resides in the narrowed portion of the postcentral gyrus, immediately above the tongue area.
Conclusions. Cortical landmarks such as the substrata of tongue and face sensory impressions are more reliable guides than stereotactic coordinates or measurements for localizing function.
Keyword Somatosensory cortex
Postcentral gyrus
Face
Tongue
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Advanced Imaging Publications
 
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Created: Fri, 13 Nov 2009, 08:01:51 EST