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Mechanisms for acute changes in sensory maps


Calford, MB, Mechanisms for acute changes in sensory maps, Advances in Experimental Medicine and Biology, 508 pp. 451-460. ISSN 0065-2598 (2002) [Refereed Article]


Many studies have examined changes in the topographic representations of the special senses in cerebral cortex following partial peripheral deafferentations. This approach has demonstrated the short- medium- and long-term aspects of plasticity. However, the extensive capacity for immediate plasticity, while first demonstrated more than 15 years ago, still challenges explanation. What such studies indicate is that each locus in sensory cortex receives viable input from a far wider area of the sensory epithelium than is represented in the normal receptive field, with the implication that much of this input is normally inhibited. Consideration of the geometric and temporal aspects of receptive field plasticity suggests that this inhibition must be tonic and must derive its driving input from a tonically active periphery.

Item Details

Item Type:Refereed Article
Keywords:auditory cortex; conference paper; denervation; nerve cell plasticity; neuroepithelium; phantom pain; priority journal; pure tone audiometry; retina receptive field; sensory cortex; topography; animal; brain mapping; physiology
Research Division:Biomedical and Clinical Sciences
Research Group:Neurosciences
Research Field:Neurology and neuromuscular diseases
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Calford, MB (Professor Mike Calford)
ID Code:91294
Year Published:2002
Deposited By:Research Division
Deposited On:2014-05-13
Last Modified:2014-05-13

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