Pictorial size perception in schizophrenia

Psicologia: Reflexão e Crítica

Flora Silva Teixeira¹  Maria Lúcia de Bustamante Simas¹  Aline Mendes Lacerda¹  Georgia Mônica Marque de Menezes¹  Carlos Henrique Resende Freire¹  Ana Cristina Taunay Maranhão¹  Cecília Coimbra da Silva Raposo¹ 

[1] Laboratório de Percepção Visual, Programa da Pós Graduação em Psicologia, Centro de Filosofia e Ciências Humanas, Universidade Federal de Pernambuco, Recife, Brazil;

关键词: Schizophrenia;    Psychosis;    Spatial perception;    Size perception;    Pictorial perception;   

DOI  :  10.1186/s41155-021-00201-z

来源: Springer

【 摘 要 】

In this study, we compared visual pictorial size perception between healthy volunteers (CG) and an experimental group (EG) of people diagnosed with schizophrenia. We have been using paintings by Salvador Dalí and Rorschach plates to estimate visual pictorial size perception. In this transversal, ex post facto, and quasi-experimental study, we observed differences between EG and CG. Schizophrenic in-patients perceived sizes about 1.3-fold greater than healthy volunteers (p=0.006), implying that pictorial size perception is altered in some way in schizophrenia. Considering the present and previous results, this measurement of diameter size of first pictorial perception may be a useful estimate of some aspects of perceptual alterations that may be associated with psychotic symptoms in prodromal and acute schizophrenic episodes and other related mental states. Eventually, this may help in preventing people from evolving to acute episodes.

【 授权许可】

CC BY