Document Detail


P3 abnormality in fragile X syndrome.
MedLine Citation:
PMID:  2949781     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
P300 (P3) and other long latency auditory event-related potentials (ERPs) were recorded in 33 adults with fragile X syndrome. All patients had an abnormal P3. It was longer in latency and smaller in amplitude than in controls. In several cases, it was split into two separate components, and in others, was generated in response to expected as well as unexpected events. Abnormal P3 was not related to age, percentage cell fragility, or intellectual ability, but complete splitting was associated with the presence of physical dysmorphisms. Our results are interpreted as showing that in fragile X syndrome there is dysgenesis of the hippocampus and related brain structures.
Authors:
D M St Clair; D H Blackwood; C J Oliver; P Dickens
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Biological psychiatry     Volume:  22     ISSN:  0006-3223     ISO Abbreviation:  Biol. Psychiatry     Publication Date:  1987 Mar 
Date Detail:
Created Date:  1987-04-07     Completed Date:  1987-04-07     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0213264     Medline TA:  Biol Psychiatry     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  303-12     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aged
Down Syndrome / physiopathology
Evoked Potentials, Auditory*
Female
Fragile X Syndrome / physiopathology*
Humans
Male
Middle Aged
Reaction Time
Sex Chromosome Aberrations / physiopathology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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