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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1996-4-25
pubmed:abstractText
We analyzed F-18 fluoro-deoxyglucose PET scans carried out in 18 drug-free patients with Tourette's syndrome (TS) in order to evaluate relationships between cerebral metabolism and complex cognitive and behavioural features commonly associated with this disorder. These features (obsessions and compulsions, impulsivity, coprolalia, self-injurious behavior, echophenomena, depression, and measures of attentional and visuospatial dysfunction) were associated with significant increases in metabolic activity in the orbitofrontal cortices. Similar increases, although less robust, were observed in the putamen and, in the case of attentional and visuospatial measures, in the inferior portions of the insula. On the other hand, behavioral and cognitive features were not associated with metabolic rates in other subcortical (midbrain, ventral striatum), paralimbic (parahippocampal gyrus), or sensorimotor regions (supplementary motor area, lateral premotor or Rolandic cortices), in which metabolism had, in some cases more robustly, distinguished these TS patients from controls (Braun et al., 1993). These results suggest that a subset of regions in which metabolic activity appears to be associated with the diagnosis of TS per se, may be explicitly associated with the emergence of complex behavioral and cognitive features of the illness. This is most conspicuous in the orbitofrontal cortices, and it is consistent with the observation that these features resemble the elements of a behavioral syndrome typically seen in patients with lesions of the orbitofrontal cortex.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0893-133X
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
151-68
pubmed:dateRevised
2011-5-18
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
The functional neuroanatomy of Tourette's syndrome: an FDG-PET Study. II: Relationships between regional cerebral metabolism and associated behavioral and cognitive features of the illness.
pubmed:affiliation
NIDCD, National Institutes of Health, Bethesda, MD 20892, USA.
pubmed:publicationType
Journal Article