Depression of lingual tactile sensation during chemical stimulation of the human tongue.


The subjectively estimated magnitude of human tactile sensation elicited by tapping the tongue was depressed during taste stimulation by 3 and 6% NaCl solution, 0.1% quinine and 0.5% acetic acid. No significant change in the tactile sensation occurred during flow of 2-20% sucrose solution. The result may be attributed to presynaptic inhibition exerted by… (More)


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