Time-course of the Positive and Negative Affect Schedule (PANAS) during an episode of psychosis: a pilot study.
Curso temporal de la Escala de Afectividad Positiva y Negativa (PANAS) durante un episodio de psicosis: estudio piloto.
Abstract
A central issue in affective science is the assessment of specific feelings in severe mental disorders. The PANAS (Positive [PA] and Negative [NA] Affect Scale)is widely used, and we have described its psychometric properties in Venezuela. Here, the course of the PANAS is described during a psychotic epi-sode requiring hospitalization.Eighteen consecutively admitted patients (56% females) were assisted to answer the PANAS, the Brief Psychiatric Rating Scale (BPRS) and locally designed depression (GE-DEPRE) and anxiety (ANSILET) scales, at admission and at discharge. The PA subscale showed a non-significant increase (p = 0.07), whereas the NA subscale displayed a significant decrease (p = 0.01). In males, at discharge, the NA scale positively correlated with the ANSILET (p = 0.09), whereas the PA inversely correlated with the GE-DEPRE scale (p= 0.007).The PANAS may complement the standard psychological eval-uations by monitoring specific affect dimensions, relatively independent from the core psychopathology.
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