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Neurosci Lett. 1993 Dec 24;164(1-2):13-6.

Projection of the inferior dental nerve to the primary somatosensory cortex in rats.

Author information

1
Department of Physiology, Kumamoto University School of Medicine, Japan.

Abstract

We observed perioral representations in the primary somatosensory cortex in rats to identify the location of the tooth region. Field potentials evoked by stimulation of an inferior dental nerve were mapped on a surface of the cerebral cortex. Stimulation of the nerve bilaterally evoked biphasic (positive-negative) or triphasic (positive-negative-positive) field potentials with contralateral predominance. The focus of the field potentials was located in the rostral region of the lower jaw zone of the somatosensory map, as visualized in a flattened cerebral hemisphere, using cytochrome oxidase histochemistry.

PMID:
8152588
DOI:
10.1016/0304-3940(93)90845-c
[Indexed for MEDLINE]

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