Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2003-8-13
pubmed:abstractText
This study aimed to determine whether deficit but not nondeficit schizophrenia showed dysregulation of decision-making. In a two-choice prediction task, the subject is asked to predict whether a stimulus appears on the left or right side of a computer screen. Schizophrenia patients were divided into 12 patients with and 12 patients without deficit syndrome and compared to 12 healthy control subjects. Dynamical entropy and mutual information analyses were used to determine underlying strategies and the degree to which sequences of responses are nonrandom. When compared to controls, deficit but not nondeficit schizophrenia patients showed a dysregulation of decision-making characterized by an increased oscillation between highly predictable and highly unpredictable response sequences. Moreover, in deficit patients, the previous choice was more predictive of the current response. Therefore, the two-choice prediction task may be useful in differentiating between deficit and nondeficit schizophrenia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0165-1781
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
119
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
293-306
pubmed:dateRevised
2008-4-17
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Behavioural dysregulation of decision-making in deficit but not nondeficit schizophrenia patients.
pubmed:affiliation
Psychiatric Services of Aargau Canton, Department of Research, Zürcherstrasse, P.O. Box 298, 5201 Brugg, Switzerland. katja.ludewig@pdag.ch
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't