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Published on: December 2, 2015
Recognition of affect in facial expression using the Noh Mask Test: comparison of individuals with schizophrenia and
Seiko Minoshita1, Nobuaki Morita, Toshiyuki Yamashita
1Department of Psychology, Kawamura Gakuen Woman's University, Abiko, Chiba, Japan. mino@os.rim.or.jp
Abstract:
The purpose of the present study was to compare facial expression recognition in individuals with schizophrenia and normal controls using the Noh Mask Test. Fifteen men with schizophrenia and 15 normal controls were presented with a photograph of a Noh mask rotated either upward or downward from the neutral front-facing position, and an emotion label, and were requested to judge whether the expression of the mask was congruent with the indicated emotion. Using multidimensional scaling, the facial expression of the Noh mask recognized by the patients and the healthy controls was analyzed in 3-D: (i) Rejection-Attention; (ii) Pleasant-Unpleasant; and (iii) Awakening-Relaxation. Individuals with schizophrenia had difficulty recognizing that others had intentions of harming them. The Noh Mask Test was found to be useful in discriminating between individuals with schizophrenia and controls in the recognition of facial expression (discriminant ratio: 99.9%).
