Enhanced Automatic Action Imitation and Intact Imitation-Inhibition in Schizophrenia

Schizophrenia Bulletin
Arndis SimonsenVibeke Bliksted

Abstract

Imitation plays a key role in social learning and in facilitating social interactions and likely constitutes a basic building block of social cognition that supports higher-level social abilities. Recent findings suggest that patients with schizophrenia have imitation impairments that could contribute to the social impairments associated with the disorder. However, extant studies have specifically assessed voluntary imitation or automatic imitation of emotional stimuli without controlling for potential confounders. The imitation impairments seen might therefore be secondary to other cognitive, motoric, or emotional deficits associated with the disorder. To overcome this issue, we used an automatic imitation paradigm with nonemotional stimuli to assess automatic imitation and the top-down modulation of imitation where participants were required to lift one of 2 fingers according to a number shown on the screen while observing the same or the other finger movement. In addition, we used a control task with a visual cue in place of a moving finger, to isolate the effect of observing finger movement from other visual cueing effects. Data from 33 patients (31 medicated) and 40 matched healthy controls were analyzed. Patients displaye...Continue Reading

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Citations

Apr 9, 2021·Brain : a Journal of Neurology·Arndis SimonsenDaniel Campbell-Meiklejohn
Jun 17, 2021·Schizophrenia Bulletin·Derek J DeanSohee Park

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