Effect of intracranial acetylcholine injection on thermoregulatory responses in the rat.

Abstract

In a study with 5 male Sprague-Dawley rats, microinjections of acetylcholine (ACh) into the preoptic-anterior hypothalamic tissue or lateral ventricle led to an immediate increase in tail temperature and decrease in hypothalamic temperature. The decrease in hypothalamic temperature, but not the increase in tail temperature, was obscured if the S was active following the injection. (PsycINFO Database Record (c) 2006 APA, all rights reserved)