Differences between Self-Reported and Observed Pleasure in Depression and Schizophrenia

Brown, Serena-Lynn; Sweeney, Donald R.; Schwartz, Gary E.

doi:10.1097/00005053-197907000-00003

Cited by 42 publications

(29 citation statements)

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“…Schizophrenic patients have repeatedly been reported as scoring high on anhedonia scales, whatever the subtype of schizophrenia considered [8,24,25]. In a more refined study, Kirkpatrick and Buchanan [7] showed that for 16 deficit schizophrenics (according to DSM-III subtypes), PAS and SAS mean scores were significantly higher than forIn this study anhedonia does not appear to be specific for the deficit syndrome since there is no significant difference between the deficit schizophrenic group and the major depressive group regarding both PAS and FCPCS-PP mean scores.…”

Section: Discussionmentioning

confidence: 99%

Anhedonia in the Deficit Syndrome of Schizophrenia

1999

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Previous studies have shown that anhedonia characterizes the deficit syndrome of schizophrenia. Anhedonia is also one of the main symptoms of the depressive state. The purpose of this study was to examine the relationships between anhedonia and depression in the deficit syndrome of schizophrenia. Self-evaluations of anhedonia and depression were performed by three groups of subjects (32 deficit schizophrenics, 32 major depressives, 35 healthy subjects) matched for sociodemographic variables. Deficit schizophrenics and major depressives are more anhedonic than controls, but there is no difference between the two study groups. Contrarily to what is evidenced for major depressives and for healthy subjects, the depressive symptomatology correlates with anhedonia in deficit schizophrenics. When deficit schizophrenics are dichotomized into depressed versus non-depressed patients, no difference is observed concerning anhedonia. These results suggest that anhedonia in the deficit syndrome of schizophrenia has no specificity but appears independent of coexisting depression and covaries with several characteristics of depression (retardation, cognitive distortions). Our results support the hypothesis that the deficit syndrome of schizophrenia could constitute a non-depressive mood disorder.

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Section: Discussionmentioning

confidence: 99%

Anhedonia in the Deficit Syndrome of Schizophrenia

1999

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“…During each observational period, subjects were rated once each minute on affective expression and behavioral content. The PAORS was shown to have an interrater reliability of 0.89 (13).…”

Section: Methodsmentioning

confidence: 97%

“…This was the self-report scale used in the previous study of self-reported and observed pleasure (13). It includes 92 items describing pleasurable events and activities such as "eating" or "having a good or interesting conversation".…”

Section: Methodsmentioning

confidence: 99%

“…This was the observer rating scale used in the previous study of self-reported and observed pleasure (13). It consisted of a seven point.intensity scale designed for use by an observer and focused on observable changes in facial expression.…”

Section: Methodsmentioning

confidence: 99%

“…Recently, an attempt was made to examine separately the several channels through which the experience or the expression of pleasure might be evaluated, with an intensive evaluation of depressed and schizophrenic inpatients on a clinical research ward (13). Because previous work in this area has typically concentrated on either self or observer report, with a confounding of these potentially separate channels, this research examined self-report and observation data longitudinally in order to determine the degree of association of these different measures.…”

Section: Introductionmentioning

confidence: 99%

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Dissociation of Self-Reported and Observed Pleasure in Depression

Brown

Schwartz

Sweeney

1978

Psychosomatic Medicine

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Anhedonia, or the inability to experience pleasure, is an important component of depressive symptomatology. Observer ratings of positive affect and self-ratings of pleasurable experience were collected from ten depressed inpatients and ten ward staff members during the patients' base-line, medication-free period. Depressives were observed to display significantly lower degrees of positive affect than the normal group, but they reported significantly higher degrees of experienced pleasure. The normal group displayed positive affective behavior that was consistent with self-reported data. Thus, normal subjects showed synchronous, or associated self-reported and observed activity, whereas depressives appeared to be dissociated along those same dimensions. A dissociation also appeared in self-reports of positive versus negative mood states, suggesting the existence of a malfunction in these normally inhibitory affective mechanisms.

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