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Journal Articles Parkinsonism & Related Disorders Year : 2022

No evidence of impaired visual and tactile metacognition in adults with tourette disorder

Polina Arbuzova
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Siqi Guo
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Christina Koss
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Lille Kurvits
  • Function : Author
Andrea Kühn
  • Function : Author
Elisa Filevich
  • Function : Author
Christos Ganos

Abstract

Introduction: Premonitory urges in Tourette disorder are often linked to altered somatosensory processing, which might include deficits in metacognition. We explored tactile and visual metacognitive ability in people with Tourette disorder and healthy control participants. Methods: Patients with Tourrete disorder and healthy control participants completed a tactile and a visual metacognitive task. On each trial, participants did a forced choice discrimination and then rated their confidence in their decision. To quantify metacognitive ability, we used m-ratio — a bias-free measure that allows for comparisons across modalities. Correlations between severity of tics and premonitory urges with tactile metacognitive sensitivity were also performed. Results: Metacognitive ability in both tactile and visual domains was comparable between adults with Tourette disorder and healthy controls. We also found no evidence for correlations between tactile metacognitive ability and severity of premonitory urges or tic severity. Conclusions: Tactile and visual metacognition is not impaired in adults with Tourette disorder. These results question the role of altered tactile metacognition in pathophysiology of tic disorders.
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hal-03603513 , version 1 (09-03-2022)

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Polina Arbuzova, Siqi Guo, Christina Koss, Lille Kurvits, Nathan Faivre, et al.. No evidence of impaired visual and tactile metacognition in adults with tourette disorder. Parkinsonism & Related Disorders, 2022, ⟨10.1016/j.parkreldis.2022.02.019⟩. ⟨hal-03603513⟩
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