Facilitation of discriminated rearing-avoidance in rats with hippocampal lesions.
Effects of bilateral hippocampal lesions were investigated in a newly developed discriminated rearing-avoidance task. A significant facilitation of avoidance conditioning was found in rats with hippocampal lesions. The over-all escape topography of the hippocampal-lesioned rats was mostly jumping whereas that of the controls was rearing. These findings suggest that the hippocampal lesion increases reactivity to shock.
D000818:Animals; D001362:Avoidance Learning / Q000502:physiology*; D001522:Behavior, Animal / Q000502:physiology; D004193:Discrimination Learning / Q000502:physiology*; D004597:Electroshock; D007839:Functional Laterality; D006624:Hippocampus / Q000502:physiology*; D008297:Male; D051381:Rats