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Hypophysectomy prevents ACTH-induced yawning and penile erection in rats
Pharmacology, Biochemistry, and Behavior
|February 1, 1987
Abstract:
The intracerebroventricular administration of ACTH1-24 (3-5 micrograms/rat) produced a behavioural syndrome characterized by recurrent episodes of penile erection and yawning in rats. Hypophysectomy prevented ACTH1-24-induced yawning and penile erection. These results suggest that pituitary has a "trophic" action not only on peripheral target organs but also on structures in brain controlling specific behavioural responses.