Time perception and its neuropsychological correlates in patients with schizophrenia and in healthy volunteers

Abstract Disordered time perception has been reported in schizophrenia. We investigated time perception dysfunction and its neuropsychological correlates in patients with schizophrenia. Participants comprised 38 patients and 38 age- and sex-matched healthy volunteers who were compared in an auditory...

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Bibliographic Details
Published in:Psychiatry research 2009-04, Vol.166 (2), p.174-183
Main Authors: Lee, Kwang-Hyuk, Bhaker, Rajinder S, Mysore, Ashok, Parks, Randolph W, Birkett, Paul B.L, Woodruff, Peter W.R
Format: Article
Language:English
Subjects:
Adult
Adult and adolescent clinical studies
Auditory Perception
Biological and medical sciences
Case-Control Studies
Cognition
Female
Humans
Male
Medical sciences
Memory, Short-Term
Middle Aged
Neuropsychological Tests
Psychiatry
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Psychoses
Reaction Time
Scalar property of timing
Schizophrenia
Schizophrenia - physiopathology
Schizophrenic Psychology
Sustained attention
Temporal bisection
Time Perception
Wisconsin Card Sorting Test
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Summary:Abstract Disordered time perception has been reported in schizophrenia. We investigated time perception dysfunction and its neuropsychological correlates in patients with schizophrenia. Participants comprised 38 patients and 38 age- and sex-matched healthy volunteers who were compared in an auditory temporal bisection paradigm using two interval ranges (a 400/800 ms condition and a 1000/2000 ms condition). In the temporal bisection, subjects were required to categorise a probe duration as short or long, based upon the similarity with two reference durations. All subjects also completed a battery of neuropsychological tests measuring sustained attention, short- and long-term memory and executive function. In the 400/800 ms condition, patients judged durations significantly shorter than did control subjects. Patients also exhibited decreased temporal sensitivity in both conditions. We found in both groups a negative association between temporal sensitivity and sustained attention for the 400/800 ms condition, and between temporal sensitivity and long-term memory for the 1000/200 ms condition. In patients, short-term memory performance was negatively associated with duration judgement in both conditions, while executive dysfunction was correlated to a general performance deficit in the 400/800 ms condition. These findings suggest the possibility that time perception abnormalities in schizophrenia are part of neuropsychological dysfunction and are likely to adversely impact upon activity of daily living.
ISSN:0165-1781
1872-7123
DOI:10.1016/j.psychres.2008.03.004