Effects of Object Size on Unimanual and Bimanual Movements in Patients With Schizophrenia.

Schizophrenia affects not only mental function but also movement. We compared the movement of patients with mild schizophrenia and healthy control participants during a bimanual assembly task and examined whether changes in object size affected unimanual and bimanual movements. Fifteen patients with...

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Publicado en:American Journal of Occupational Therapy Vol. 68; no. 2; pp. 230 - 239
Autores principales: Shu-Mei Wang, Li-Chieh Kuo, Wen-Chen Ouyang, Hsiao-Man Hsu, Keh-Chung Lin, Hui-Ing Ma
Formato: pictorial research tables/charts Journal Article
Publicado: American Occupational Therapy Association Mar/Apr2014
Acceso en línea:Ver este registro en EBSCOhost
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      dt: Mar/Apr2014
      vid: 68
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      pub: American Occupational Therapy Association
      place: North Bethesda, Maryland
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        atl: Effects of Object Size on Unimanual and Bimanual Movements in Patients With Schizophrenia.
      aug:
        au:
          Shu-Mei Wang
          Li-Chieh Kuo
          Wen-Chen Ouyang
          Hsiao-Man Hsu
          Keh-Chung Lin
          Hui-Ing Ma
        affil: Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
      sug:
        subj:
          Schizophrenia
          Movement Disorders
          Task Performance and Analysis
          Occupational Therapy Methods
          Object Manipulation
          Repeated Measures
          Random Assignment
          Convenience Sample
          DSM
          Data Analysis Software
          Two-Way Analysis of Variance
          Effect Size
          Neuropsychological Tests
          Scales
          Male
          Female
          Human
          Male
          Female
      ab: Schizophrenia affects not only mental function but also movement. We compared the movement of patients with mild schizophrenia and healthy control participants during a bimanual assembly task and examined whether changes in object size affected unimanual and bimanual movements. Fifteen patients with schizophrenia and 15 age- and gender-matched control participants were instructed to bimanually reach for and assemble objects. We manipulated the object size for the left hand (large vs. small) and measured movement time, peak velocity, and bimanual synchronization to represent movement speed, forcefulness, and bimanual coordination. Patients with schizophrenia showed slower and less forceful unimanual movements and less coordinated bimanual movements than control participants. Increasing the object size elicited faster and more forceful unimanual movements and more coordinated bimanual movements in patients. The results suggest the need for movement rehabilitation in patients with schizophrenia and the possibility of manipulating object size to optimize patients' movements. These results benefit the practice of evidence-based therapy.
      pubtype: Academic Journal
      doctype:
        pictorial
        research
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        Journal Article
      ougenre: Article
    language: English
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