Vocal Alterations in Schizophrenic Speech

Stein, Johanna

doi:10.1097/00005053-199301000-00012

Cited by 19 publications

(11 citation statements)

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“…Analyzing speech musicologically, Stein (1993) found detectable abnormalities of pitch in almost all of the schizophrenics studied, but relatively few patients diagnosed with mania or reactive psychosis. She argues that flat intonation does not reflect absence of emotion: bthose in the present study complained of an inability to express affect, but not an absence of affectQ (p. 61).…”

Section: Voice Qualitymentioning

confidence: 94%

Schizophrenia and the structure of language: The linguist's view

Covington

Brown

et al. 2005

Schizophrenia Research

301

223

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Patients with schizophrenia often display unusual language impairments. This is a wide ranging critical review of the literature on language in schizophrenia since the 19th century. We survey schizophrenic language level by level, from phonetics through phonology, morphology, syntax, semantics, and pragmatics.There are at least two kinds of impairment (perhaps not fully distinct): thought disorder, or failure to maintain a discourse plan, and schizophasia, comprising various dysphasia-like impairments such as clanging, neologism, and unintelligible utterances.Thought disorder appears to be primarily a disruption of executive function and pragmatics, perhaps with impairment of the syntax-semantics interface; schizophasia involves disruption at other levels. Phonetics is also often abnormal (manifesting as flat intonation or unusual voice quality), but phonological structure, morphology, and syntax are normal or nearly so (some syntactic impairments have been demonstrated). Access to the lexicon is clearly impaired, manifesting as stilted speech, word approximation, and neologism. Clanging (glossomania) is straightforwardly explainable as distraction by self-monitoring.Recent research has begun to relate schizophrenia, which is partly genetic, to the genetic endowment that makes human language possible. D

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Section: Voice Qualitymentioning

confidence: 94%

Schizophrenia and the structure of language: The linguist's view

Covington

Brown

et al. 2005

Schizophrenia Research

301

223

View full text Add to dashboard Cite

show abstract

“…Moreover, patients with schizophrenia display atypical prosodic patterns, in terms of flat intonation, increased pauses, distinctive tone, and abnormal voice quality 48 , 49 . Previous studies indicated slower speech 50 , more pronounced pauses 51 , 52 , and reduced prosodic variability 53 , 54 .…”

Section: Introductionmentioning

confidence: 99%

Multimodal assessment of communicative-pragmatic features in schizophrenia: a machine learning approach

et al. 2021

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An impairment in pragmatic communication is a core feature of schizophrenia, often associated with difficulties in social interactions. The pragmatic deficits regard various pragmatic phenomena, e.g., direct and indirect communicative acts, deceit, irony, and include not only the use of language but also other expressive means such as non-verbal/extralinguistic modalities, e.g., gestures and body movements, and paralinguistic cues, e.g., prosody and tone of voice. The present paper focuses on the identification of those pragmatic features, i.e., communicative phenomena and expressive modalities, that more reliably discriminate between individuals with schizophrenia and healthy controls. We performed a multimodal assessment of communicative-pragmatic ability, and applied a machine learning approach, specifically a Decision Tree model, with the aim of identifying the pragmatic features that best separate the data into the two groups, i.e., individuals with schizophrenia and healthy controls, and represent their configuration. The results indicated good overall performance of the Decision Tree model, with mean Accuracy of 82%, Sensitivity of 76%, and Precision of 91%. Linguistic irony emerged as the most relevant pragmatic phenomenon in distinguishing between the two groups, followed by violation of the Gricean maxims, and then extralinguistic deceitful and sincere communicative acts. The results are discussed in light of the pragmatic theoretical literature, and their clinical relevance in terms of content and design of both assessment and rehabilitative training.

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“…• phonetic anomalies like flattened intonation (aprosody), more pauses, and constricted pitch/timbre (Stein, 1993).…”

Section: Introductionmentioning

confidence: 99%

Predictive Linguistic Features of Schizophrenia

Kayi¹,

Diab²,

Pauselli³

et al. 2017

Proceedings of the 6th Joint Conference on Lexical and Computational Semantics (*SEM 2017)

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Schizophrenia is one of the most disabling and difficult to treat of all human medical/health conditions, ranking in the top ten causes of disability worldwide. It has been a puzzle in part due to difficulty in identifying its basic, fundamental components. Several studies have shown that some manifestations of schizophrenia (e.g., the negative symptoms that include blunting of speech prosody, as well as the disorganization symptoms that lead to disordered language) can be understood from the perspective of linguistics. However, schizophrenia research has not kept pace with technologies in computational linguistics, especially in semantics and pragmatics. As such, we examine the writings of schizophrenia patients analyzing their syntax, semantics and pragmatics. In addition, we analyze tweets of (self proclaimed) schizophrenia patients who publicly discuss their diagnoses. For writing samples dataset, syntactic features are found to be the most successful in classification whereas for the less structured Twitter dataset, a combination of features performed the best.

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Vocal Alterations in Schizophrenic Speech

Cited by 19 publications

References 0 publications

Schizophrenia and the structure of language: The linguist's view

Schizophrenia and the structure of language: The linguist's view

Multimodal assessment of communicative-pragmatic features in schizophrenia: a machine learning approach

Predictive Linguistic Features of Schizophrenia

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