Bachofner, Hanta; Scherer, Konstantin A; Vanbellingen, Tim; Bohlhalter, Stephan; Stegmayer, Katharina; Walther, Sebastian (2022). Validation of the Apraxia Screen TULIA (AST) in Schizophrenia. Neuropsychobiology, 81(4), pp. 311-321. Karger 10.1159/000523778
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INTRODUCTION
Deficits in social interaction and community functioning, including impaired use, performance, and perception of hand gestures, are key features in schizophrenia. A well-established tool to assess gesture deficits is the test of upper limb apraxia (TULIA). However, given its time-consuming application based on video analyses, research has proposed the bedside apraxia screen of TULIA (AST). This study aims to test the validity and reliability of the AST to detect gesture abnormalities at bedside in a sample of 27 patients diagnosed with schizophrenia, schizotypal disorder, acute and transient psychotic disorders, or schizoaffective disorder.
METHODS
Patients completed the 48-item TULIA and the 12-item AST. Two different raters assessed the AST: one at bedside (online) and the other based on the video recordings.
RESULTS
The total AST scores demonstrated a high parallel reliability, moderate inter-rater reliability on a single-item level, and good construct validities.
CONCLUSIONS
The psychometric properties of the AST suggest it can well be used for the clinical assessment of gesture deficits in schizophrenia. However, when detailed information is required, the AST rated from video or conducting the full TULIA is recommended. The findings call for refining the selection of the TULIA items for a psychosis-AST bedside test to increase specificity.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy > Translational Research Center 04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy |
UniBE Contributor: |
Bachofner, Hanta, Stegmayer, Katharina Deborah Lena, Walther, Sebastian |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
0302-282X |
Publisher: |
Karger |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
05 Apr 2022 14:35 |
Last Modified: |
05 Dec 2022 16:18 |
Publisher DOI: |
10.1159/000523778 |
PubMed ID: |
35367989 |
Uncontrolled Keywords: |
AST Hand gestures Nonverbal communication Schizophrenia spectrum disorders TULIA |
BORIS DOI: |
10.48350/169024 |
URI: |
https://boris.unibe.ch/id/eprint/169024 |
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