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Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
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Gesture imitation in schizophrenia.

Natasha Matthews1, Brian J Gold, Robert Sekuler

  • 1Queensland Brain Institute, University of Queensland, Brisbane, Australia.

Schizophrenia Bulletin
|July 19, 2011
PubMed
Summary
This summary is machine-generated.

Individuals with schizophrenia show impaired gesture imitation, particularly when working memory (WM) is required. This deficit is linked to negative symptoms and may affect skill learning.

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Area of Science:

  • Cognitive Neuroscience
  • Psychiatry

Background:

  • Schizophrenia is associated with imitation deficits.
  • These deficits may stem from impaired working memory (WM).

Purpose of the Study:

  • To investigate the relationship between WM and gesture imitation in schizophrenia.
  • To explore how WM demands affect imitation accuracy and speed.

Main Methods:

  • Quantitative analysis of gesture imitation in schizophrenia outpatients and healthy controls.
  • Experiments involved imitating single gestures and sequences, with and without a delay requiring WM.

Main Results:

  • Schizophrenia patients made more imitation errors than controls.
  • Imitation was significantly more impaired in schizophrenia when dependent on WM.
  • Impaired WM-dependent imitation correlated with negative symptom severity.

Conclusions:

  • Gesture imitation is impaired in schizophrenia, especially when WM is engaged.
  • This WM-related imitation deficit may impact new skill acquisition in schizophrenia.