Influence of amygdalectomy on social behavior in monkeys.

Rosvold, H. Enger; Mirsky, Allan F.; Pribram, Karl H.

doi:10.1037/h0058870

Cited by 327 publications

(158 citation statements)

References 4 publications

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“…Early studies in monkeys with conventional amygdalectomy indicate that emotional changes can vary markedly depending on the age, gender, social rank, and personality of the animal, as well as on its specific environment (e.g. Rosvold et al, 1954;Mirsky, 1960;Myers and Swett, 1970;Kling, 1974;Kling and Steklis,1976;Kling and Brothers, 1992). Since age and environment were comparable for all Rh cases, and gender had no detectable influence, the present variability may reflect the influence of the animal's initial social rank and temperament on the behavioral outcome of the lesion.…”

Section: Comments On Inter-individual Variability and Meaning Of Sympmentioning

confidence: 99%

Comparison of emotional responses in monkeys with rhinal cortex or amygdala lesions.

Meunier¹,

Bachevalier²

2002

Emotion

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Section: Comments On Inter-individual Variability and Meaning Of Sympmentioning

confidence: 99%

Comparison of emotional responses in monkeys with rhinal cortex or amygdala lesions.

Meunier¹,

Bachevalier²

2002

Emotion

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“…The clearest demonstrations have come from paradigms in which the emotional signiªcance of a stimulus can be experimentally manipulated, such as fear conditioning (Davis, 1992;Le Doux, 1996). The amygdala also plays a clear role in regard to stimuli encountered under ecologically more natural conditions: for instance, rats with bilateral amygdala damage show no fear of cats (Blanchard & Blanchard, 1972), and monkeys with such damage are abnormally tame and placid in their interactions with people or with other monkeys (Amaral, Capitanio, Machado, Mason, & Mendoza, 1997;Kling & Brothers, 1992;Meunier, Bachevalier, Murray, Malkova, & Mishkin, 1996;Rosvold, Mirsky, & Pribram, 1954;Weiskrantz, 1956). Convergent neurophysiological data are available: Neurons within the primate amygdala respond to socially relevant stimuli, such as faces (Fried, MacDonald, & Wilson, 1997;Rolls, 1992) and pictures of complex social interactions (Brothers, Ring, & Kling, 1990).…”

Section: Introductionmentioning

confidence: 99%

Preferences for Visual Stimuli Following Amygdala Damage

Adolphs

Tranel

1999

Journal of Cognitive Neuroscience

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I Bilateral damage to the human amygdala impairs retrieval of emotional and social information from faces. An important unanswered question concerns the speciªcity of the impairment for faces. To address this question, we examined preferences for a broad class of visual stimuli in two subjects with complete bilateral amygdala damage, both of whom were impaired in judgments of faces. Relative to controls, the subjects showed a positive bias for simple nonsense ªgures, color patterns, three-dimensional-looking objects and landscapes. The impairment was most pronounced in regard to those stimuli that are normally liked the least. The human amygdala thus appears to play a general role in guiding preferences for visual stimuli that are normally judged to be aversive. I

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“…In the primate, substantial attention has been directed to the amygdala, because its damage leads to clear changes in dominance status. Rosvold, Mirsky, and Pribram (1954) first evaluated the role of the amygdala in social rank by lesioning the amygdalae of the 3 highest ranking male members of a small social group of macaques. Following amygdalectomy, 2 of the 3 previously high-ranking monkeys became submissive and fell to the bottom of the dominance hierarchy, whereas the 3rd monkey became abnormally aggressive.…”

mentioning

confidence: 99%

The expression of social dominance following neonatal lesions of the amygdala or hippocampus in rhesus monkeys (Macaca mulatta).

Bauman¹,

Toscano²,

Mason³

et al. 2006

Behavioral Neuroscience

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As part of ongoing studies on the neurobiology of socioemotional behavior in the nonhuman primate, the authors examined the social dominance hierarchy of juvenile macaque monkeys (Macaca mulatta) that received bilateral ibotenic acid lesions of the amygdala or the hippocampus or a sham surgical procedure at 2 weeks of age. The subjects were reared by their mothers with daily access to large social groups. Behavioral observations were conducted while monkeys were given access to a limited preferred food. This testing situation reliably elicited numerous species-typical dominance behaviors. All subjects were motivated to retrieve the food when tested individually. However, when a group of 6 monkeys was given access to only 1 container of the preferred food, the amygdala-lesioned monkeys had less frequent initial access to the food, had longer latencies to obtain the food, and demonstrated fewer species-typical aggressive behaviors. They were thus lower ranking on all indices of social dominance. The authors discuss these findings in relation to the role of the amygdala in the establishment of social rank and the regulation of aggression and fear.

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Influence of amygdalectomy on social behavior in monkeys.

Cited by 327 publications

References 4 publications

Comparison of emotional responses in monkeys with rhinal cortex or amygdala lesions.

Comparison of emotional responses in monkeys with rhinal cortex or amygdala lesions.

Preferences for Visual Stimuli Following Amygdala Damage

The expression of social dominance following neonatal lesions of the amygdala or hippocampus in rhesus monkeys (Macaca mulatta).

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