Abstract
Prosopagnosia, also known as facial blindness, has attracted wide attention in the social field in recent years. However, it mainly depends on the self-report of the chief complaint in the actual diagnosis. In addition, there is a lack of standardized measurement basis, which brings a lot of inconvenience to the patients themselves and follow-up researchers. In this study, we tested the reliability and validity of the Chinese version of 20 - item prosopagnosia index (PI-20). 647 young people aged 18-45 filled in PI-20, the adult autistic quotient scale, the empathy quotient questionnaire, and completed the retest one month later. Results showed that the PI-20 has good internal consistency reliability, test-retest reliability, and has good validity. In addition, confirmatory factor analysis shows that the model can well fit the data of Chinese population and can be used for large-scale measurement. The Chinese version PI-20 is a reliable measurement for prosopagnosia.
Highlights
Individuals with prosopagnosia are unable to recognize acquaintances and their own faces while their intelligence, social function and other aspects of visual processing are normal
The researchers gradually differentiated the term into acquired prosopagnosia (AP) caused by brain injury and relative developmental prosopagnosia (DP) according to the different conditions of the patients with the deepening of the study and the increase of patient cases
Some DP patients have symptoms that occur at an early stage of development, and never have normal facial recognition
Summary
Individuals with prosopagnosia are unable to recognize acquaintances and their own faces while their intelligence, social function and other aspects of visual processing (such as object recognition) are normal. A famous German neurologist and psychiatrist, first proposed the term -- prosopagnosia in 1947[1]. The researchers gradually differentiated the term into acquired prosopagnosia (AP) caused by brain injury and relative developmental prosopagnosia (DP) according to the different conditions of the patients with the deepening of the study and the increase of patient cases. Some DP patients have symptoms that occur at an early stage of development, and never have normal facial recognition. They do not realize that they are different from others [12]
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