Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-23T01:04:51.803Z Has data issue: false hasContentIssue false

An idiot savant calendrical calculator with Gilles de la Tourette syndrome: implications for an understanding of the savant syndrome

Published online by Cambridge University Press:  09 July 2009

J. Moriarty*
Affiliation:
Department of Neuropsychiatry, Institute of Neurology; and University College and Middlesex Hospital School of Medicine, London
H. A. Ring
Affiliation:
Department of Neuropsychiatry, Institute of Neurology; and University College and Middlesex Hospital School of Medicine, London
M. M. Robertson
Affiliation:
Department of Neuropsychiatry, Institute of Neurology; and University College and Middlesex Hospital School of Medicine, London
*
1Address for correspondence: Dr J. Moriarty, Room 808, Institute of Neurology, Queen Square, London WC1N 3BG.

Synopsis

We describe the existence of the savant syndrome in association with Gilles de la Tourette's Syndrome (GTS). The presentation of savant abilities is typical of that previously described. Similarities between autism, the disorder most characteristically associated with savants, and GTS in terms of obsessionality are noted. Previously reported psychological studies of autistic savants are briefly reviewed and, together with evidence from neuroimaging in GTS, obsessive compulsive disorder (OCD), and autism, used to support a model of the underpinnings of savant skills.

Type
Brief Communication
Copyright
Copyright © Cambridge University Press 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Baron-Cohen, S. (1989). Do autistic children have obsessions and compulsions? British Journal of Clinical Psychology 28, 193200.CrossRefGoogle ScholarPubMed
Chase, T. N., Geoffrey, V., Gillespie, M. & Burrows, G. (1986). Structural and functional studies of Gilles de la Tourette Syndrome. Revue Neurologique (Paris) 142, 851855.Google Scholar
Cohen, N. J. & Squire, L. R. (1980). Preserved learning and retention of pattern-analyzing skill in amnesia: dissociation of knowing how and knowing that. Science 210, 207209.CrossRefGoogle ScholarPubMed
Cooper, J. E. (1970). The Leyton obsessional inventory. Psychological Medicine 1, 4864.Google Scholar
Dieci, M. & Guarnieri, A. M. (1990). The idiot Savant: a reconsideration of the syndrome. American Journal of Psychiatry 147, 13871388.Google Scholar
Hermelin, B. & O'Connor, N. (1986). Idiot savant calendrical calculators: rules and regularities. Psychological Medicine 16, 885893.CrossRefGoogle ScholarPubMed
Hermelin, B. & O'Connor, N. (1988). Low intelligence and special abilities. Journal of Child Psychology and Psychiatry 29, 391396.Google Scholar
Horwitz, B., Rumsey, J. M., Grady, C. L. & Rapoport, S. I. (1988). The cerebral metabolic landscape in autism: intercorrelations of regional glucose utilization. Archives of Neurology 45, 749755.CrossRefGoogle ScholarPubMed
Kerbeshian, J. & Burd, L. (1986). Asperger's Syndrome and Tourette Syndrome. British Journal of Psychiatry 148, 731736.CrossRefGoogle ScholarPubMed
O'Connor, N. & Hermelin, B. (1984). Idiot savant calendrical calculators: maths or memory? Psychological Medicine 14, 801806.CrossRefGoogle ScholarPubMed
O'Connor, N. & Hermelin, B. (1991). Talents and preoccupations in idiots-savants. Psychological Medicine 21, 959964.CrossRefGoogle ScholarPubMed
Robertson, M. (1989). The Gilles de la Tourette Syndrome: the current status. British Journal of Psychiatry 154, 147169.CrossRefGoogle ScholarPubMed
Schachter, D. (1987). Implicit and explicit memory. Journal of Experimental Psychology, LMC 13, 501518.Google Scholar
Treffert, D. A. (1988). The idiot savant: a review of the syndrome. American Journal of Psychiatry 145, 563572.Google Scholar