we conclude that social novelty , as provided by exposure to a juvenile conspecific , stimulates greater investigation and postinvestigatory self-grooming than exposure to a novel inanimate object and that exposure to novel conspecifics presents a useful method for the investigation of sex differences , gonadal hormone effects , and interactions of hormones with neurotransmitter systems governing motor control systems .
C0301819
gonadal hormone
C0019932
hormones