title: Comparative studies with cyclic and linear somatostatin on active avoidance behaviour and open-field activity in rats.
abstract: The action of cyclic and linear somatostatin on active avoidance and open-field behaviour was investigated in rats. Both peptides inhibited the extinction of the avoidance behaviour and slightly but not significantly increased the intertrial activity (ITR). Both peptides increased ambulation and rearing activity in a dose related fashion, while the grooming and defecation rates were not changed. Since both peptides are capable of increasing the locomotor performance this action might contribute to the effect exerted on the extinction of active avoidance behaviour.
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects / Q000502:physiology*; D004305:Dose-Response Relationship, Drug; D004924:Escape Reaction / Q000187:drug effects / Q000502:physiology*; D008297:Male; D009043:Motor Activity / Q000187:drug effects / Q000502:physiology*; D051381:Rats; D011919:Rats, Inbred Strains; D013004:Somatostatin / Q000031:analogs & derivatives* / Q000494:pharmacology / Q000502:physiology*; D013329:Structure-Activity Relationship
chemical_list: D013004:Somatostatin