Effect of septal and frontal ablations on species-typical behavior in the rat.

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Abstract
Assigned 15 male and 15 female Long-Evans rats to 3 groups: septal lesions, frontal lesions, and control. Behavioral measures were taken both pre- and postoperatively while Ss were freely interacting in a series of 5 large interconnecting chambers. Main categories of behavior observed included exploration, sleep, grooming, aggression, eating, mating, and drinking. The numerous differences found were related more often to sex and phase (pre- vs. postoperative), irrespective of lesion effects. Following behavioral observations, 2-way active-avoidance measures were obtained, and Ss with septal lesions showed the expected facilitation of avoidance behavior. The problem of comparing results derived from studies of brain damage using observational methods with those from laboratory task studies is discussed. (22 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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