ArticleSchizophrenia (Heidelberg, Germany)2024
Approximating the semantic space: word embedding techniques in psychiatric speech analysis.
Article in Schizophrenia (Heidelberg, Germany), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Interpretable LLM-Based Detection of Loose Associations Using Synthetic Speech Data in Early Psychosis.Schizophrenia bulletin · 2026Article
- Using AI to Detect Psychosis Relapse: Scoping Review.JMIR mental health · 2026Article
- Reduced linguistic coherence in psychosis defies semantic similarity accounts and relates to altered large-scale cortical hierarchy.Scientific reports · 2026Article
- Uncertainty modeling in multimodal speech analysis across the psychosis spectrum.NPJ digital medicine · 2026Article
- Three dimensions of speech coherence in people with early psychosis and their family members.Schizophrenia (Heidelberg, Germany) · 2025Article
- Analysis of conceptual overlap among formal thought disorder rating scales in psychosis: a systematic semantic synthesis.Schizophrenia (Heidelberg, Germany) · 2025Article
- Lexical meaning is lower dimensional in psychosis.Scientific reports · 2025Article
- Glutamate, Contextual Insensitivity, and Disorganized Speech in First-Episode Schizophrenia: A 7T Magnetic Resonance Spectroscopy Study.Biological psychiatry global open science · 2025Article
- A single composite index of semantic behavior tracks symptoms of psychosis over time.Schizophrenia research · 2025Article
- A single composite index of semantic behavior tracks symptoms of psychosis over time.medRxiv : the preprint server for health sciences · 2025Article
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Authors and funding
10 authors.
Funding
Abstract
Large language models provide high-dimensional representations (embeddings) of word meaning, which allow quantifying changes in the geometry of the semantic space in mental disorders. A pattern of a more condensed ('shrinking') semantic space marked by an increase in mean semantic similarity between words has been recently documented in psychosis across several languages. We aimed to explore this pattern further in picture descriptions provided by a transdiagnostic German sample of patients with schizophrenia spectrum disorders (SSD) (n = 42), major depression (MDD, n = 43), and healthy controls (n = 44). Compared to controls, both clinical groups showed more restricted dynamic navigational patterns as captured by the time series of semantic distances crossed, while also showing differential patterns in the total distances and trajectories navigated. These findings demonstrate alterations centred on the dynamics of the flow of meaning across the semantic space in SSD and MDD, preserving previous indications towards a shrinking semantic space in both cases.
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Registered trials
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