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Syntactic complexity and diversity of spontaneous speech production in schizophrenia spectrum and major depressive disorders

Psychology

Syntactic complexity and diversity of spontaneous speech production in schizophrenia spectrum and major depressive disorders

K. Schneider, K. Leinweber, et al.

This intriguing study by researchers including Katharina Schneider and Katrin Leinweber delves into the fascinating comparison of syntactic complexity in speech among schizophrenia spectrum disorder patients, major depressive disorder patients, and healthy controls. The findings reveal significant differences, highlighting the intriguing relationship between syntax and severe psychopathology. Discover how the nuances of speech can unveil deeper psychological insights.

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Playback language: English
Abstract
This study investigates whether reduced syntactic complexity in speech is unique to schizophrenia spectrum disorder (SSD) or also present in major depressive disorder (MDD). Thirty-four SSD patients, 38 MDD patients, and 40 healthy controls described pictures. SSD patients showed significantly reduced syntactic complexity and diversity compared to MDD and control groups. Cluster analysis revealed four transdiagnostic clusters with varying syntactic complexity, with lower syntax associated with more severe psychopathology and poorer neuropsychological performance. Network analyses showed stronger associations between syntax, neuropsychology, and psychopathology in more complex speech.
Publisher
Schizophrenia
Published On
May 29, 2023
Authors
Katharina Schneider, Katrin Leinweber, Hamidreza Jamalabadi, Lea Teutenberg, Katharina Brosch, Julia-Katharina Pfarr, Florian Thomas-Odenthal, Paula Usemann, Adrian Wroblewski, Benjamin Straube, Nina Alexander, Igor Nenadić, Andreas Jansen, Axel Krug, Udo Dannlowski, Tilo Kircher, Arne Nagels, Frederike Stein
Tags
syntactic complexity
schizophrenia
major depressive disorder
psychopathology
neuropsychological performance
transdiagnostic clusters
speech analysis

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