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Science 26 March 1971:
Vol. 171. no. 3977, pp. 1256 - 1258
DOI: 10.1126/science.171.3977.1256
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Articles

Taste Stimuli: Quality Coding Time

Bruce P. Halpern 1 and Daniel N. Tapper 1

1 Departments of Psychology and Physical Biology and Section of Neurobiology and Behavior, Cornell University, Ithaca, New York 14850

Rats conditioned to avoid drinking 300 millimolar NaCl recognized and rejected this solution within 250 to 600 milliseconds of onset of stimulus, a period containing the phasic portion of the peripheral neural response. They generalized to 500 millimolar NaCl but not to 500 millimolar sucrose. Rejection was based on quality identification neurally encoded within this brief period.


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