Abstract:Mammals normally maintain a constant body temperature irrespective of their environmental temperature. However, emotions such as fear can trigger acute changes in body temperature accompanying defensive behaviors to enhance survival in life-threatening conditions. The neural mechanisms of fear-associated thermoregulation remain unclear. Here, we find that innate fear odor 2-methyl-2-thiazoline (2MT) evokes rapid hypothermia and elevated tail temperature, indicative of vasodilation-induced heat dissipation, in … Show more
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