Administration of dermorphin (0.1 mg/kg, subcutaneously) induced a drop of body temperature, deceleration of initial vegetative parameters and development of hibernation-like state in susliks. The delayed effects involved a disorder in conditioning. The immunisation of hibernating susliks with the dermorphin conjugate leads to a gradual waking up of the animals, normalising of conditioning in all the parameters and occurrence of a motor component in avoidance conditioning. A possible specific role of the dermorphin in the mechanisms of hibernation, is discussed.
Acoustic Stimulation Animals