... or conspecific mating call. Treatment with human chorionic gonadotropin prior to recording resulted in no significant differences in the number or response properties of the acoustically sensitive hypothalamic cells. These results suggest that acoustic signals such as those used for intraspecific communication...

...Kathleen S. Lynch; Walter Wilczynski In many vertebrates, the production and reception of species-typical courtship signals occurs when gonadotropin and gonadal hormone levels are elevated. These hormones may modify sensory processing in the signal receiver in a way that enhances behavioral...