2 pigtail monkeys with dorsolateral frontal lesions and 2 control Ss were observed pre- and postoperatively in social and isolation conditions. Behavior was exhaustively classified into 10 discrete categories. In both observation situations the distribution of behavior was consistent over time for controls. In the social observation condition, however, frontals increased slow locomotion and decreased behaviors involving visual stimulation. No changes in behavior patterns were produced by the isolation condition.
References
1.
DavisR. T.LearyR. W.SmithM.ThompsonR. F.Species differences in the gross behavior of nonhuman primates. Behavior, 1968, 31, 326–338.
2.
FletcherH. J.The delayed response problem. In SchrierA. M.HarlowH.StollnitzF. (Eds.), Behavior of nonhuman primates. Vol. 1. New York: Academic Press, 1965. Pp. 129–166.
3.
FrenchG. M.Locomotor effects of regional ablations of frontal cortex in rhesus monkeys. J. comp. physiol. Psychol., 1959, 52, 18–24.
4.
FrenchG. M.Hyperactivity and impairment of delayed reaction in monkeys after lesions of the frontal lobes. In XVIII International Congress of Psychology, frontal lobes and the regulation of behavior. Moscow: Congress, 1966. Pp. 50–55.
5.
FrenchG. M.HarlowH. F.Locomotor reaction decrement in normal and brain-damaged monkeys. J. comp. physiol. Psychol., 1955, 48, 496–501.
6.
GrossC. G.Locomotor activity following lateral frontal lesions in rhesus monkeys. J. comp. physiol. Psychol., 1963, 56, 232–237.
7.
GrossC. G.WeiskrantzL.Some changes in behavior produced by lateral frontal lesions in the macaque. In WarrenJ. M.AkertK. (Eds.), The frontal granular cortex and behavior. New York: McGraw-Hill, 1964. Pp. 74–101.
8.
HeimstraN. W.DavisR. T.A simple recording system for the direct observation technique. Anim. Behav., 1962, 10, 3–4.
9.
IsaacW.DeVitoJ. L.Effect of sensory stimulation on the activity of normal and prefrontal lobectomized monkeys. J. comp. physiol. Psychol., 1958, 51, 172–174.
10.
PlutchikR.The study of social behavior in primates. Folia Primatologia, 1964, 2, 67–92.
11.
SomervillJ.FosheeD.AndyO. J.Effect of environmental conditions on locomotor behavior in monkeys with frontal lesions. Psychological Reports, 1964, 14, 395–401.
