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Perplexity and pseudo-perplexity as objective measures of linguistic deficits in schizophrenia: Evidence from a Korean-Speaking cohort

delete2026-05-05
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PRE
AI
S
Seunghyong Ryu
J
Ju-Wan Kim
M
Min Jhon
Y
Young-Chul Chung
S
Seok Jun Kim
S
Suehyun Lee
J
Jae-Min Kim
S
Sung-Wan Kim *
DOI:10.1016/j.schres.2026.04.030delete
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Abstract

Abstract

En 中文
Linguistic deficits are core features of schizophrenia. Perplexity (PPL) and pseudo-perplexity (PPPL), derived from language models, serve as probabilistic metrics of contextual uncertainty. This study investigated their utility as objective markers for distinguishing patients with schizophrenia from healthy controls.
Keywords:
Perplexity
Pseudo-perplexity
Schizophrenia
Linguistic deficits
Language models

Journal

Schizophrenia Research cover
Schizophrenia Research
IF:
3.5
Papers:
1.7W
Citations:
2.2W

Organization

J
jeonbuk national university
Scholars:
1.7K
Papers: 767
Citations: 0
C
chonnam national university
Scholars:
1.9K
Papers: 812
Citations: 0
G
gachon university
Scholars:
1.7K
Papers: 1.0K
Citations: 0
Cited Papers

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