Abstract

Cortical taste area (CTA) is located in two cytoarchitectonically different areas of the cerebral cortex in rats: granular and dysgranular insular areas (areas GI and DI). In both areas, taste neurons have been found among mechanoreceptive neurons with receptive fields in the oral cavity [1]. Cortical taste neurons in rats are characterized by small response magnitudes, large receptive fields, and response profiles with two peaks [2–4]. Such response features are considered to be the results of convergence of afferents at various relay stations along the central gustatory pathway and in the CTA, together with the action of excitatory and inhibitory interneurons in these regions. In these synaptic processes, many substances operate as transmitters or modulators.

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