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Objective investigation of activity preference in schizophrenia: A pilot study

Siddiqui, Ishraq et al.

Psychiatry research. Volume 267: (2018, September); pp 551-559 -- Elsevier

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  • Title:
    Objective investigation of activity preference in schizophrenia: A pilot study
  • Author: Siddiqui, Ishraq;
    Remington, Gary;
    Fervaha, Gagan;
    Fletcher, Paul J.;
    Voineskos, Aristotle N.;
    Saperia, Sarah;
    Zakzanis, Konstantine K.;
    Foussias, George
  • Found In: Psychiatry research. Volume 267: (2018, September); pp 551-559
  • Journal Title: Psychiatry research
  • Subjects: Psychiatrie--Périodiques; Psychiatry--periodicals; Psychiatry--Periodicals; Motivation--Effort--Negative symptoms--Motion capture--Physical activity; Dewey: 616.89
  • Rights: Licensed
  • Publication Details: Elsevier
  • Abstract: Highlights A motion capture-based task was developed to objectively assess activity engagement. Participants were provided unincentivized active versus passive engagement options. Active engagement in schizophrenia was associated with amotivation and functioning. Cluster analysis identified patient subgroups with distinct behavioural profiles. Abstract Amotivation and reduced goal-directed activity engagement are prominent features of schizophrenia. Previous investigations of patients' activities have relied on accounts of daily living activities, rather than objective measures. This study used wireless motion capture to objectively evaluate activity preference when individuals are provided an explicit choice between an active versus passive engagement option. Twenty outpatients with schizophrenia and twenty matched healthy controls completed the Activity Preference Task, in which participants play a motion-based game (active) or watch a film (passive), and were administered clinical and cognitive assessments. Schizophrenia participants' duration, intensity, and persistence of active engagement were associated with apathy and community functioning. No group differences emerged from comparisons of task measures; however, exploratory cluster analysis identified a distinct subgroup of schizophrenia patients with reduced engagement and increased apathy compared to other patients and controls. The Task provides a means of quantifying activity engagement, which may be particularly valuable given the lack of objective measures for intrinsically motivated behaviours. Our initial findings suggest that schizophrenia patients as a group are equally inclined as healthy individuals towards actively engaging activities when presented an explicit choice, but such provision may be insufficient for initiation and maintenance of functional behaviours among amotivated patients.
  • Identifier: System Number: ETOCvdc_100073183475.0x000001; Journal ISSN: 0165-1781; 10.1016/j.psychres.2018.05.039
  • Publication Date: 2018
  • Physical Description: Electronic
  • Shelfmark(s): 6946.263700
  • UIN: ETOCvdc_100073183475.0x000001

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