Do medial preoptic lesions interfere with the set-point of temperature regulation?

Rats with lesions in the medial preoptic area were placed in a thermocline where they could choose ambient temperatures (T a) ranging from 17 to 31°C. The hypothalamic temperature (T hy) and the selected T a were continuously recorded. Amplitude of T hy circadian oscillations was exaggerated in 23 o...

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