White Rose University Consortium logo
University of Leeds logo University of Sheffield logo York University logo

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

Lee, K.H., Bhaker, R.S., Mysore, A., Parks, R.W., Birkett, P.B.L. and Woodruff, P.W.R. (2009) Time perception and its neuropsychological correlates in patients with schizophrenia and in healthy volunteers. Psychiatry Research, 166 (2-3). pp. 174-183. ISSN 0165-1781

Full text available as:
[img] Text
Lee_Time_perception.pdf

Download (255Kb)

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 ins 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 ins 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. (c) 2008 Elsevier Ireland Ltd. All rights reserved.

Item Type: Article
Copyright, Publisher and Additional Information: © 2009 Elsevier. This is an author produced version of a paper subsequently published in Psychiatry Research. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: Temporal bisection; Sustained attention; Wisconsin Card Sorting Test; Scalar property of timing
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Medicine, Dentistry and Health (Sheffield) > School of Medicine (Sheffield) > Division of Genomic Medicine (Sheffield) > Department of Psychiatry (Sheffield)
The University of Sheffield > Faculty of Medicine, Dentistry and Health (Sheffield) > School of Medicine (Sheffield)
Depositing User: Miss Anthea Tucker
Date Deposited: 19 May 2009 12:08
Last Modified: 08 Feb 2013 16:58
Published Version: http://dx.doi.org/10.1016/j.psychres.2008.03.004
Status: Published
Publisher: Elsevier
Refereed: Yes
Identification Number: 10.1016/j.psychres.2008.03.004
URI: http://eprints.whiterose.ac.uk/id/eprint/8585

Actions (repository staff only: login required)