Positive and negative symptoms in schizophrenia: A longitudinal analysis using latent variable structural equation modelling
نویسندگان
چکیده
منابع مشابه
Positive and negative symptoms in schizophrenia.
Negative and positive symptoms were determined for 46 drug-free patients who met Research Diagnostic Criteria (RDC) and/or Feighner criteria for schizophrenia. A modified version of the Scale for the Assessment of Negative Symptoms (SANS) was completed for each patient based on items from the Schedule for Affective Disorders and Schizophrenia (SADS) and other scales. Positive symptoms were scor...
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Introduction: This study aims to compare the positive and negative symptoms of schizophrenia in patients who had psychotic symptoms more than one month after discontinuation of methamphetamine abuse. These factors were analyzed by the PANSS (Positive and Negative Syndrome Scale) questionnaire. Materials and Methods: 60 participants were selected from patients referred to Iran Psychiatric Hospi...
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The author proposes an alternative estimation technique for latent variable interactions and quadraties. Available techniques for specifying these variables in structural equation models require adding variables or constraint equations that can produce specification tedium and errors or estimation difficulties. The proposed technique avoids these difficulties and may be useful for EQS, LISREL 7...
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Negative and positive symptoms were investigated in a sample of 72 young schizophrenic and depressed patients at followup approximately 1 1/2 years after hospital discharge. Flat affect, poverty of speech, and psychomotor retardation were included as negative symptoms, and delusions, hallucinations, and florid thought disorder as positive symptoms. Marked negative symptoms were found to occur i...
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objective: the present study aimed to clarify dissociative symptoms in patients with schizophrenia and its association with negative and positive symptom of schizophrenia. methods: based on the 4th edition of diagnostic and statistical manual of mental disorders (dsm-iv) criteria, 80 schizophrenic subjects were randomly selected from patients who referred to the clinics of psychiatry hospital i...
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ژورنال
عنوان ژورنال: Schizophrenia Research
سال: 2019
ISSN: 0920-9964
DOI: 10.1016/j.schres.2018.08.018