Patterns of Speech Disorders in Schizophrenia and Mania

Taylor, Michael Alan; Reed, Robyn A.; Berenbaum, Sheri A.

doi:10.1097/00005053-199406000-00002

Cited by 53 publications

(29 citation statements)

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“…On the other hand, the variety of subtle between-group differences allowed us, when the respective variables were analyzed as a multivariate entity, to discriminate between diagnostic groups at an overall performance of 72.7% correctly classified patients. The respective classification rates were in good accordance with previous reports in the literature [9,12,22,48,49].…”

Section: Discussionsupporting

confidence: 91%

Linguistic Analysis of the Speech Output of Schizophrenic, Bipolar, and Depressive Patients

Lott¹,

Guggenbühl²,

Schneeberger³

et al. 2002

Psychopathology

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Using speech samples of 100 patients suffering from schizophrenia, bipolar illness and major depression, we addressed the question of the extent to which the linguistic abnormalities in the speech of these patients represent diagnosis-specific characteristics or constitute independent, syndrome-like dimensions of the illnesses. All speech samples were transcribed by a professional linguist who was blind to both identity and diagnosis of the patients. The majority of the deviant linguistic variables was found to be common to all three diagnostic groups under comparison, while only a few linguistic variables exhibited statistically significant between-group differences. On the other hand, when the respective variables were analysed as a multivariate entity, the variety of subtle between-group differences allowed us to discriminate between the diagnostic groups at an overall performance of 72.7% correctly classified patients. There was an almost complete lack of association between linguistic abnormalities and psychopathology syndromes. In particular, we found no correlation between the syndrome ‘formal thought disorder’ and the large variety of linguistic variables used in this investigation. In consequence, we conjecture that linguistically deviant speech characteristics represent an independent syndrome complex manifested at varying intensities across mental illnesses, and that this syndrome complex deserves greater attention, not only with respect to the principal understanding of the underlying disturbances, but also as a potential target of therapeutical intervention.

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Section: Discussionsupporting

confidence: 91%

Linguistic Analysis of the Speech Output of Schizophrenic, Bipolar, and Depressive Patients

Lott¹,

Guggenbühl²,

Schneeberger³

et al. 2002

Psychopathology

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“…An indirect measure of affect in thought disorder in schizophrenia was illustrated by examining thought disorder in core schizophrenia (emotional blunting and avolition) and non-core schizophrenia (no loss of expression or history of prominent affective disturbance, avolition possible) (Taylor et al, 1994 This study again implicates the possible role of affect in thought disorder given the differences in thought disorder in manic states and the manifestation of thought disorder related to past and present affective disturbance in schizophrenia. While these findings appear to support the positive/negative thought disorder dichotomy introduced earlier, these findings suggest an alternative perspective: a continuum of affective disturbance that may be related to thought disorder presentation and may impact thought disorder in schizophrenia.…”

Section: Affect and Thought Disordermentioning

confidence: 84%

“…Results further suggest that thought disorder in schizophrenia is often frequent and persists as part of an unremitting illness. Finally, findings suggest that thought disorder in schizophrenia may be primarily characterized by poverty of speech and poverty of content of speech (Andreasen, 1979b;Andreasen & Grove, 1986;Harvey & Brault, 1986;Harvey et al, 1984;Taylor et al, 1994). Mixed results for the relationship between psychosis and thought disorder suggest a trend for different symptom courses.…”

Section: Review Of Thought Disorder In Schizophrenia: Problems With Mmentioning

confidence: 99%

“…Unfortunately, the study by Taylor et al (1994) is the only study found that examined affect and thought disorder in schizophrenia, albeit indirectly. Therefore, we are left to extrapolate from the limited research examining thought disorder and affect.…”

Section: Affect and Thought Disordermentioning

confidence: 99%

“…While thought disorder is considered a core feature of schizophrenia, it also occurs at a similar rate in individuals with bipolar disorder I (Andreasen, 1979b;Andreasen & Grove, 1986;Harrow et al, 1982;Harvey et a., 1990;Harvey et al, 1984;Holzman et al, 1986;Levy et al, 2010;Marengo & Harrow, 1985), and schizoaffective disorder (Andreasen & Grove, 1986;Holzman et al, 1986), albeit more associated with positive thought disorder in mania (Andreasen & Grove, 1986;Harvey & Brault, 1986;Harvey et al, 1990;Harvey et al, 1984;Jampala et al, 1989;Taylor et al, 1994).…”

Section: Thought Disorder In Affective and Non-schizophrenic Psychotimentioning

confidence: 99%

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Understanding thought disorder in schizophrenia-spectrum disorders : exploring the relation and implications of affect.

Waford

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As an expert in this area she provided a critical eye and helpful feedback. The significance of affect in schizophrenia-spectrum disorders has received considerable support, including its role in cognitive processing and executive function.Findings examining affect and cognition in schizophrenia appear to parallel findings with healthy controls: positive affect contributes to broad, top-down processing and negative affect leads to narrow, bottom-up processing. This dissertation extends this exploration to the study of affect and its role in thought disorder, a core, and yet enigmatic feature of schizophrenia-spectrum disorders.This dissertation examines the role of affective intensity and valence in thought disorder severity. Self-reported affective intensity and valence were assessed with the PANAS, and thought disorder severity was evaluated by scoring Rorschach protocols using the Thought Disorder Inventory. The dissertation has two hypotheses: (1) affective intensity is a more significant factor than affective valence in predicting the severity of thought disorder in schizophrenia and schizoaffective disorder, and (2) positive affect is related to categories that reflect broader, more associative processing, while negative affect is related to categories that reflect narrowed processing.Both hypotheses were supported. Affective intensity significantly predicted thought disorder severity and was a better predictor, overall, then affective valence. vi Furthermore, positive and negative affect were related to indicators of broad versus narrow processing, respectively. Self-reported negative affect emerged as a particularly salient variable in thought disorder severity and presentation. The current findings have implications for our understanding of the mechanisms underlying thought disorder severity in schizophrenia-spectrum disorders, and the significance of affective experience in this spectrum of illness. vii

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Automated Method for Diagnosing Speech and Language Dysfunction in Schizophrenia

Tilaka

Diederich

Song

et al. 2013

Mental Health Informatics

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Patterns of Speech Disorders in Schizophrenia and Mania

Cited by 53 publications

References 0 publications

Linguistic Analysis of the Speech Output of Schizophrenic, Bipolar, and Depressive Patients

Linguistic Analysis of the Speech Output of Schizophrenic, Bipolar, and Depressive Patients

Understanding thought disorder in schizophrenia-spectrum disorders : exploring the relation and implications of affect.

Automated Method for Diagnosing Speech and Language Dysfunction in Schizophrenia

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