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. 1964 Jan;47(3):479-86.
doi: 10.1085/jgp.47.3.479.

THE RECEPTOR POTENTIAL OF THE TASTE CELL OF THE RAT

H TATEDA, L M BEIDLER

THE RECEPTOR POTENTIAL OF THE TASTE CELL OF THE RAT

H TATEDA et al. J Gen Physiol. 1964 Jan.

Abstract

The electrical responses of the taste cell of the rat to chemical stimuli were studied by means of microelectrode techniques. Although large positive potential changes in the taste cell were usually elicited by taste stimuli, the response was a small negative potential change with respect to surrounding tissues if the microelectrode was thrust deeply into the taste bud. Both FeCl(3) and cocaine produced a positive change in the steady potential. If this new potential is larger than a certain equilibrium potential, reversal of the polarity of the potential change caused by a taste stimulus is observed. Gamma-aminobutyric acid and acetylcholine had no effect on the receptor steady potential nor on the receptor responses elicited by taste stimuli.

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