Evidence map›Paper›PMID 33099076›Full record

ReviewCortex; a journal devoted to the study of the nervous system and behavior2020

Gesture deficits and apraxia in schizophrenia.

Sebastian Walther, Vijay A Mittal, Katharina Stegmayer, Stephan Bohlhalter

Registry-linked trialOpen access · hybridAbstract readReview
In one paragraph

Review in Cortex; a journal devoted to the study of the nervous system and behavior, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06949449 (Upper Limb Functional Capacity in Individuals Diagnosed With Mental Disorders), which is not on this map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
5.6field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT06949449 completednot on this mapstarted 2024, after this paper: background citation

Upper Limb Functional Capacity in Individuals Diagnosed With Mental Disorders: A Cross-Sectional Study

TypeobservationalSponsorUniversidad de BurgosRan2024 to 2025Enrolled38ConditionsMental Health, Multiple Sclerosis
3 · Its place in the literature

Who cites it

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Aberrant gesture use in autism spectrum disorders is unrelated to motor abnormalities.European archives of psychiatry and clinical neuroscience · 2026
    Article
  4. Review
  5. Article
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  9. Review
  10. Apraxia: From Neuroanatomical Pathways to Clinical Manifestations.Current neurology and neuroscience reports · 2024
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 3 countries.

Sebastian WaltherTranslational Research Center, University Hospital of Psychiatry, University of Bern, Switzerland. Electronic address: Sebastian.walther@upd.unibe.ch.
Vijay A MittalDepartments of Psychology, Psychiatry, Medical Social Sciences, Institutes for Policy Research (IPR) and Innovations in Developmental Sciences (DevSci), Northwestern University, USA.
Katharina StegmayerTranslational Research Center, University Hospital of Psychiatry, University of Bern, Switzerland.
Stephan BohlhalterNeurocenter, Luzerner Kantonsspital, Switzerland.
University of Bern · CHLuzerner Kantonsspital · CHNorthwestern University · US

Funding

An examination of psychomotor disturbance in current and remitted MDD: An RDoC StudyR01MH118741 · NIMH · NORTHWESTERN UNIVERSITY AT CHICAGO · PI MITTAL, VIJAY A, SHANKMAN, STEWART AARON · 2019 to 2023
$3.4M
High-Risk Psychosis Youth and Caregivers: Emotion in InteractionR21MH115231 · NIMH · NORTHWESTERN UNIVERSITY · PI HAASE, CLAUDIA, MITTAL, VIJAY A · 2017 to 2018
$484k
Using Speech Acoustics to Reveal Motor Disruptions in PsychosisR21MH119677 · NIMH · NORTHWESTERN UNIVERSITY · PI GOLDRICK, MATTHEW A, MITTAL, VIJAY A · 2019 to 2020
$424k
NIMH NIH HHS R01 MH118741NIMH NIH HHS R21 MH115231NIMH NIH HHS R21 MH119677
6 · The paper itself

Abstract

Aberrant performance of skilled action has long been noted in schizophrenia and relatedly, recent reports have demonstrated impaired use, performance, and perception of hand gestures in this group. Still, this deficit is not acknowledged as apraxia, which to the broader medical field, characterizes impairments in skilled actions. Understanding the relationship between apraxia and schizophrenia may shed an invaluable new perspective on disease mechanism, and highlight novel treatment opportunities as well. To examine this potential link, we reviewed the evidence for the types of praxis errors, associated psychopathology, and cerebral correlates of the praxis deficit in schizophrenia. Notably, the review indicated that gesture deficits are severe enough to be considered genuine apraxia in a substantial proportion of patients (about 25%). Further, other potential contributors (e.g., hypokinetic motor abnormalities, cognitive impairment) are indeed associated with gesture deficits in schizophrenia, but do not sufficiently explain the abnormality. Finally, patients with praxis deficits have altered brain structure and function including the left parieto-premotor praxis network and these neural correlates are specific to the praxis deficit. Therefore, we argue that the gestural disorder frequently observed in schizophrenia shares both the clinical and neurophysiological features of true apraxia, as in other neuropsychiatric disorders with impaired higher order motor control, such as Parkinson's disease.

Indexed as

ApraxiasParkinson DiseaseSchizophreniaBrainGesturesHumansMotor abnormalitiesNon-verbal communicationPraxis deficitPsychosis

Identifiers

PMID33099076
PMCPMC7945048
OpenAlexW3089818066

What OpenQuestion holds

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Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.