Licking behavior: evidence of hypoglossal oscillator

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Science  03 Jun 1977:
Vol. 196, Issue 4294, pp. 1122-1124
DOI: 10.1126/science.558653


Action potentials and slow waves were recorded from the hypoglossal nucleus of rats during licking of water from a drinking tube. Periods of licking and of rhythmic neural activity were usually highly correlated, as were their frequencies. Neural activity sometimes continued after cessation of licking; at other times, it stopped during a short interruption of licking and resumed in rhythm with licking. These observations are consistent with an oscillatory model of the control of licking.