Effects of septal lesions and adrenalectomies on the acquisition and extinction of shuttle avoidance in the rat.
Rats with septal lesions and rats with both septal lesions and adrenalectomies (SEP-ADX) acquired avoidance behaviors faster and extinguished these behaviors slower than rats with adrenalectomies or control lesions. Rats with septal lesions also showed increased intertrial crossings during habituation, acquisition, and extinction while rats in group SEP-ADX only had increased intertrial crossings during acquisition. These findings are consistent with the hypothesis that the avoidance performance of rats with septal lesions is a result of neural rather than hormonal factors.
D000315:Adrenalectomy; D000818:Animals; D001362:Avoidance Learning / Q000502:physiology*; D005108:Extinction, Psychological / Q000502:physiology; D006185:Habituation, Psychophysiologic / Q000502:physiology; D008297:Male; D051381:Rats; D012688:Septum Pellucidum / Q000502:physiology*