Étude du traitement des informations contextuelles syntaxiques lors d'une tâche de décision lexicale chez des sujets schizophrènes

Besche, Chrystel; Passerieux, Christine; Seguí, Juan; G, Mesure; Hardy-Baylé, Marie-Christine

doi:10.1177/070674379604100908

Cited by 9 publications

(6 citation statements)

References 37 publications

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“…We can assume that, under the experimental conditions used here, the process was used correctly by all the schizophrenic patients. These results confirmed the data of our first experiment in which a different lexical-decision paradigm was used (double lexical-decision task; Besche et al, 1996). These results are congruent with the data presented in the literature that indicate the preservation of syntactic processing during on-line tasks in schizophrenic participants (Carpenter, 1976;Miller & Phelan, 1980).…”

Section: Discussionsupporting

confidence: 91%

Syntactic and semantic processing in schizophrenic patients evaluated by lexical-decision tasks.

Besche¹,

Passerieux²,

Hardy-Baylé³

et al. 1997

Neuropsychology

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Two lexical-decision tasks with 500-ms stimulus-onset asynchrony were conducted with 34 schizophrenic patients. This group consisted of 24 schizophrenic patients with thought disorder (TD) and 10 schizophrenic patients without thought disorder (NTD), 14 psychiatric controls (depressive illness), 20 hospitalized controls, and 20 normal controls. One lexical-decision task with semantic relations (related vs. unrelated, Experiment 1) and 1 task with syntactic relations (congruent vs. incongruent; Experiment 2) were used to evaluate processing of different lexical information. In Experiment 1, although all control groups and NTD schizophrenic patients showed semantic priming, TD schizophrenic patients did not. In Experiment 2, all groups showed a significant syntactic effect. These findings provide evidence for an abnormality in semantic processing and the preservation of syntactic processing in TD schizophrenic patients, thus suggesting a deficit in the processing of semantic information under certain conditions when compared with normal syntactic processing.

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Section: Discussionsupporting

confidence: 91%

Syntactic and semantic processing in schizophrenic patients evaluated by lexical-decision tasks.

Besche¹,

Passerieux²,

Hardy-Baylé³

et al. 1997

Neuropsychology

Self Cite

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“…This experiment was presented under two different conditions: a sequential presentation with a stimulus onset asynchrony (SOA) of 500 milliseconds as in the first experiment and a simultaneous presentation with an SOA of 0 milliseconds. The results revealed that only the semantic relations were ignored, while schizophrenia subjects processed the syntactic context normally, whatever the conditions of presentation (Besche et al 1996, 1997).…”

Section: Experimental Evidence In Favor Of Hardy-baylé’s Model: the P...mentioning

confidence: 88%

The Cognitive Basis of Disorganization Symptomatology in Schizophrenia and Its Clinical Correlates: Toward a Pathogenetic Approach to Disorganization

Hardy-Baylé

Sarfati

Passerieux

2003

Schizophrenia Bulletin

150

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This article focuses on the schizophrenic disorganization syndrome, which was initially described by Bleuler (who used the term "dissociation") as lying at the heart of schizophrenia. While adopting a neo-Bleulerian approach, we describe schizophrenic disorganization using a pathogenetic hypothesis and a three-part structure. First, we discuss previous approaches to characterizing and defining schizophrenic disorganization, providing arguments in favor of a complementary approach to describing schizophrenic disorganization that relies on a pathogenetic analysis of the disorganization syndrome, and especially thought and language disorders. Second, we present two possible cognitive pathophysiological mechanisms that may explain schizophrenic disorganization: (1) a deficit in the integration of contextual information, based on the results of semantic priming studies; and (2) a theory of mind deficit, based on the results of studies of the attribution of mental states to others. We propose a cognitive model of schizophrenic dysfunctioning on the basis of these two anomalies. Third, we summarize our published findings to examine the implications of these two cognitive pathophysiological mechanisms for schizophrenic disorganization. On the basis of the same two anomalies, we then propose and illustrate a neo-Bleulerian approach to the assessment of communication disorders that is critical to the improvement of schizophrenic disorganization's clinical description.

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“…Unlike Frith [7], Hardy-Baylé and colleagues [8,62] suggest that the ability to attribute intention to others is intact in SCHI individuals. According to these authors, SCHI individuals' apparent inability to attribute intention to others is the result of their inability to use context to decode other people's intentions rather than a deficit in their ability to understand mental states.…”

Section: The Context Mis-processing Hypothesismentioning

confidence: 99%

“…Hardy-Baylé et al suggest an impairment of the inhibition mechanism to account for such a deficit. Disorganized SCHI subjects may able to process only syntactic context and not semantic or pragmatic context [62]. SCHI patients may fail to use context because they are unable to detect or encode contextually relevant information during comprehension [63,64].…”

Section: The Context Mis-processing Hypothesismentioning

confidence: 99%

Social Cognition Deficit in Schizophrenia: Accounting for Pragmatic Deficits in Communication Abilities?

Champagne-Lavau¹,

Stip²,

Joanette

2006

CPSR

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Schizophrenic individuals show impairments in language affecting what is referred to as the pragmatic component of language, typically the processing of non-literal language (e.g., irony, metaphor, indirect request). Such non-literal utterances require the ability to process the speaker's utterance beyond its literal meaning in order to allow one to grasp the speaker's intention by reference to the contextual information. This paper gives a selective literature review showing that different cognitive processes-specific to language or not-may underlie the processing of pragmatic aspects of language, and particularly of non-literal language in schizophrenia. Indeed, the fact that many other disorders (e.g., right hemisphere lesion, traumatic brain injury, autism) are characterized by pragmatic impairments may reflect a heterogeneous range of underlying functional deficits that have to be determined. Evidence is reviewed suggesting that cooccurrence of a deficit in non-literal language understanding and a deficit in theory of mind may be accounted for by an impairment in context processing associated with a lack of flexibility.

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Étude du traitement des informations contextuelles syntaxiques lors d'une tâche de décision lexicale chez des sujets schizophrènes

Cited by 9 publications

References 37 publications

Syntactic and semantic processing in schizophrenic patients evaluated by lexical-decision tasks.

Syntactic and semantic processing in schizophrenic patients evaluated by lexical-decision tasks.

The Cognitive Basis of Disorganization Symptomatology in Schizophrenia and Its Clinical Correlates: Toward a Pathogenetic Approach to Disorganization

Social Cognition Deficit in Schizophrenia: Accounting for Pragmatic Deficits in Communication Abilities?

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