Deconstructing negative symptoms of schizophrenia: avolition-apathy and diminished expression clusters predict clinical presentation and functional outcome.
Gregory P. Strauss,William P. Horan,Brian Kirkpatrick,Bernard A. Fischer,Bernard A. Fischer,William R. Keller,Pinar Miski,Robert W. Buchanan,Robert W. Buchanan,Michael F. Green,William T. Carpenter,William T. Carpenter +11 more
TLDR
It is suggested that distinct subgroups of patients with elevated AA or DE can be identified within the broader diagnosis of schizophrenia and that these subgroups show clinically meaningful differences in presentation.About:
This article is published in Journal of Psychiatric Research.The article was published on 2013-06-01 and is currently open access. It has received 343 citations till now. The article focuses on the topics: Avolition & Apathy.read more
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Apathetic symptom presentations in patients with severe traumatic brain injury: Assessment, heterogeneity and relationships with psychosocial functioning and caregivers' burden.
TL;DR: The scores distribution and the sensitivity of each sub-scale showed that the AI can be used as a screening tool in the TBI population and shed new light on the concept of apathy in patients with TBI.
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Neuroleptic-free youth at ultrahigh risk for psychosis evidence diminished emotion reactivity that is predicted by depression and anxiety
TL;DR: Findings suggest that UHR youth display a profile of emotional experience abnormalities that differs from the chronic phase of illness, which can be characterized as reduced positive emotion reactivity to pleasant stimuli (i.e., anhedonia) that may be driven by mood and anxiety symptoms.
Journal ArticleDOI
A dimensional comparison between delusional disorder, schizophrenia and schizoaffective disorder
José Eduardo Muñoz-Negro,Inmaculada Ibanez-Casas,Enrique de Portugal,Susana Ochoa,Montserrat Dolz,Josep Maria Haro,Miguel Ruiz-Veguilla,Juan de Dios Luna del Castillo,Jorge A. Cervilla +8 more
TL;DR: The dimensional model was useful to explained differences and similarities between all three psychosis spectrum categories, and the potential clinical usefulness of this dimensional model within and between clinical psychosis Spectrum categories is discussed.
Journal ArticleDOI
Negative symptoms of psychosis: A life course approach and implications for prevention and treatment.
TL;DR: The development of effective treatments for negative symptoms has remained slow and the challenge of improving negative symptom outcomes is compounded by the limited understanding of their aetiology and longitudinal development.
Journal ArticleDOI
Primary and Secondary Negative Symptoms in Schizophrenia
Sergey Mosolov,P.A. Yaltonskaya +1 more
TL;DR: This review and position paper covers the historical and modern concepts of the paradigm of positive and negative symptoms in schizophrenia, as well as a detailed comparison of the assessment tools and psychometric tests used for the evaluation of negative symptoms.
References
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The Brief Psychiatric Rating Scale
John E. Overall,Donald R. Gorham +1 more
TL;DR: The Brief Psychiatric Rating Scale (BRS) as mentioned in this paper was developed to provide a rapid assessment technique particularly suited to the evaluation of patient change, and it is recommended for use where efficiency, speed, and economy are important considerations.
Book
Cluster Analysis
TL;DR: This fourth edition of the highly successful Cluster Analysis represents a thorough revision of the third edition and covers new and developing areas such as classification likelihood and neural networks for clustering.
Book
Cluster analysis
TL;DR: Cluster analysis is a multivariate procedure for detecting natural groupings in data that resembles discriminant analysis in one respect—the researcher seeks to classify a set of objects into subgroups although neither the number nor members of the subgroups are known.
Journal ArticleDOI
Negative Symptoms in Schizophrenia: Definition and Reliability
TL;DR: The developed Scale for the Assessment of Negative Symptoms has excellent interrater reliability and the five symptom complexes defined by the scale have good internal consistency, which indicates that the conceptual organization of the scale is also cohesive.
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