Within-sample, but not corpus-based word frequency of verbal fluency output is associated with positive symptoms in schizophrenia
| Main Authors: | Gabrić, Petar, Nagels, Arne, Kircher, Tilo, Rosenkranz, Anna |
|---|---|
| Format: | info publication-preprint Journal |
| Bahasa: | eng |
| Terbitan: |
, 2021
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5117883 |
Daftar Isi:
- Previous research on word frequency during speech production in schizophrenia is scant and inconclusive. Furthermore, there may exist methodological difficulties in utilizing corpus-based word frequencies, while adequate corpora are not available for all languages. We calculated (1) corpus-based and (2) within-sample word frequencies of output on verbal fluency in 36 patients with schizophrenia and tested their associations with positive and negative symptoms. Within-sample word frequency was calculated as the number of subjects in the sample who produced the word. Within-sample but not corpus-based word frequencies displayed normal, non-skewed, and non-kurtic data distributions. Within-sample but not corpus-based word frequencies were significantly correlated with the severity of delusions and bizarre behavior. We propose that the within-sample word frequency might be a valuable alternative to corpus-based word frequencies in clinical research.