Extrahypothalamic heat gain responses in the decerebrate and spinal monkey.

In the present study it was found in Taiwan rock-monkeys as well as in cats and squirrel monkeys, that heat gain thermoregulatory mechanisms were activated after destruction of connection from the hypothalamus to the brain stem and/or spinal cord. The findings suggest that heat gain physiological mechanisms could be represented and re-represented at different levels of neuraxis: hypothalamus, brain stem and spinal cord. This concept was supported by the fact that the three levels have their own thermoresponsive cells and the cells of one level can act independently or in an integrated manner with those of the other levels. Therefore, this study would be a good model for future research to determined in physiological and behavior complexities of the multiple representation of thermoregulatory mechanisms.