Circadian variation in the latency of brainstem responses and its relation to body temperature

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Science  17 Apr 1981:
Vol. 212, Issue 4492, pp. 356-358
DOI: 10.1126/science.7209538


The auditory brainstem response varies in a circadian rhythm that is negatively correlated with the circadian rhythm in oral temperature. The auditory brainstem responses and oral temperature were recorded every 3 hours from three healthy male subjects during a 2-day period. The data indicate that a reduction of 1 degree C in oral temperature is associated with an increase of 200 microseconds in the latency of wave V of the auditory brainstem response, and of 160 microseconds in the interval between waves I and V.