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The human amygdala in social judgment

Abstract

Studies in animals have implicated the amygdala in emotional1,2,3, and social4,5,6, behaviours, especially those related to fear and aggression. Although lesion7,8,9,10, and functional imaging11,12,13,14, studies in humans have demonstrated the amygdala's participation in recognizing emotional facial expressions, its role in human social behaviour has remained unclear. We report here our investigation into the hypothesis that the human amygdala is required for accurate social judgments of other individuals on the basis of their facial appearance. We asked three subjects with complete bilateral amygdala damage to judge faces of unfamiliar people with respect to two attributes important in real-life social encounters: approachability and trustworthiness. All three subjects judged unfamiliar individuals to be more approachable and more trustworthy than did control subjects. The impairment was most striking for faces to which normal subjects assign the most negative ratings: unapproachable and untrustworthy looking individuals. Additional investigations revealed that the impairment does not extend to judging verbal descriptions of people. The amygdala appears to be an important component of the neural systems that help retrieve socially relevant knowledge on the basis of facial appearance.

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Figure 1: Mean judgments.
Figure 2: Deviations from normal judgments.
Figure 3: Disproportionate impairment in choosing the most unapproachable faces.
Figure 4: Likeability ratings of lexical stimuli.

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References

  1. Weiskrantz, L. Behavioral changes associated with ablation of the amygdaloid complex in monkeys. J.Comp. Physiol. Psychol. 49, 381–391 (1956).

    Article  CAS  Google Scholar 

  2. Blanchard, D. C. & Blanchard, R. J. Innate and conditioned reactions to threat in rats with amygdaloid lesions. J. Comp. Physiol. Psychol. 81, 281–290 (1972).

    Article  CAS  Google Scholar 

  3. Le Doux, J. The Emotional Brain(Simon and Schuster, New York, 1996).

    Google Scholar 

  4. Rosvold, H. E., Mirsky, A. F. & Pribram, K. Influence of amygdalectomy on social behavior in monkeys. J. Comp. Physiol. Psychol. 47, 173–178 (1954).

    Article  CAS  Google Scholar 

  5. Kling, A., Steklis, H. D. & Deutsch, S. Radiotelemetered activity from the amygdala during social interactions in the monkey. Exp. Neurol. 66, 88–96 (1979).

    Article  CAS  Google Scholar 

  6. Kling, A. S. & Brothers, L. A. in The Amygdala: Neurobiological Aspects of Emotion, Memory, and Mental Dysfunction(ed. Aggleton, J. P.) 353–378 (Wiley-Liss, New York, 1992).

    Google Scholar 

  7. Adolphs, R., Tranel, D., Damasio, H. & Damasio, A. Impaired recognition of emotion in facial expressions following bilateral damage to the human amygdala. Nature 372, 669–672 (1994).

    Article  CAS  ADS  Google Scholar 

  8. Young, A. W. et al. Face processing impairments after amygdalotomy. Brain 118, 15–24 (1995).

    Article  Google Scholar 

  9. Calder, A. J. et al. Facial emotion recognition after bilateral amygdala damage: differentially severe impairment of fear. Cogn. Neuropsychol. 13, 699–745 (1996).

    Article  Google Scholar 

  10. Broks, P. et al. Face processing impairments after encephalitis: amygdala damage and recognition of fear. Neuropsychologia 39, 59–70 (1998).

    Article  Google Scholar 

  11. Morris, J. S. et al. Adifferential neural response in the human amygdala to fearful and happy facial expressions. Nature 383, 812–815 (1996).

    Article  CAS  ADS  Google Scholar 

  12. Breiter, H. C. et al. Response and habituation of the human amygdala during visual processing of facial expression. Neuron 17, 875–887 (1996).

    Article  CAS  Google Scholar 

  13. Morris, J. S. et al. Aneuromodulatory role for the human amygdala in processing emotional facial expressions. Brain 121, 47–57 (1998).

    Article  Google Scholar 

  14. Tranel, D. & Hyman, B. T. Neuropsychological correlates of bilateral amygdala damage. Arch. Neurol. 47, 349–355 (1990).

    Article  CAS  Google Scholar 

  15. Damasio, A. R. Toward a neurobiology of emotion and feeling: operational concepts and hypotheses. Neuroscientist 1, 19–25 (1995).

    Article  Google Scholar 

  16. Lewicki, P., Hill, T. & Czyzewska, M. Nonconscious acquisition of information. Am. Psychol. 47, 796–801 (1992).

    Article  CAS  Google Scholar 

  17. Saarni, C., Mumme, D. L. & Campos, J. J. in Handbook of Child Psychology, Vol. 3: Social, Emotional, and Personality Development(ed. Damon, W.) 237–309 (Wiley, New York, 1997).

    Google Scholar 

  18. Tranel, D. in Neuropsychological Assessment of Neuropsychiatric Disorders(eds Grant, I. & Adams, K.M.) 81–101 (Oxford Univ. Press, New York, 1996).

    Google Scholar 

  19. Damasio, H. & Frank, R. Three-dimensional in vivo mapping of brain lesions in humans. Arch. Neurol. 49, 137–143 (1992).

    Article  CAS  Google Scholar 

  20. Frank, R. J., Damasio, H. & Grabowski, T. J. Brainvox: an interactive, multi-modal visualization and analysis system for neuroanatomical imaging. NeuroImage 5, 13–30 (1997).

    Article  CAS  Google Scholar 

  21. Adolphs, R., Tranel, D., Damasio, H. & Damasio, A. R. Fear and the human amygdala. J. Neurosci. 15, 5879–5892 (1995).

    Article  CAS  Google Scholar 

  22. Nahm, F. K. D., Tranel, D., Damasio, H. & Damasio, A. R. Cross-modal associations and the human amygdala. Neuropsychologia 31, 727–744 (1993).

    Article  CAS  Google Scholar 

  23. Anderson, N. H. Likableness ratings of 555 personality-trait words. J. Person. Social Psychol. 9, 272–279 (1968).

    Article  CAS  Google Scholar 

  24. Ekman, P. & Friesen, W. Pictures of Facial Affect(Consulting Psychologists, Palo Alto, CA, 1976).

    Google Scholar 

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Acknowledgements

We thank J. Suhr and J. Nath for technical assistance in testing subjects, D. Krutzfeldt for help in scheduling subjects and H. Damasio for comments on the manuscript. This study was supported by a grant from the National Institute for Neurological Diseases and Stroke.

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Correspondence to Ralph Adolphs.

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Adolphs, R., Tranel, D. & Damasio, A. The human amygdala in social judgment. Nature 393, 470–474 (1998). https://doi.org/10.1038/30982

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