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A Detailed Investigation Of Facial Expression Processing In Congenital Prosopagnosia As Compared To Acquired Prosopagnosia, Kate Humphreys, Galia Avidan, Marlene Behrmann
A Detailed Investigation Of Facial Expression Processing In Congenital Prosopagnosia As Compared To Acquired Prosopagnosia, Kate Humphreys, Galia Avidan, Marlene Behrmann
Marlene Behrmann
Whether the ability to recognize facial expression can be preserved in the absence of the recognition of facial identity remains controversial. The current study reports the results of a detailed investigation of facial expression recognition in three congenital prosopagnosic (CP) participants, in comparison with two patients with acquired prosopagnosia (AP) and a large group of 30 neurologically normal participants, including individually age- and gender-matched controls. Participants completed a fine-grained expression recognition paradigm requiring a six-alternative forced-choice response to continua of morphs of six different basic facial expressions (e.g. happiness and surprise). Accuracy, sensitivity and reaction times were measured. The performance …
A Fine-Grained Analysis Of Facial Expression Processing In High-Functioning Adults With Autism, Kate Humphreys, Nancy Minshew, Grace Leonard, Marlene Behrmann
A Fine-Grained Analysis Of Facial Expression Processing In High-Functioning Adults With Autism, Kate Humphreys, Nancy Minshew, Grace Leonard, Marlene Behrmann
Marlene Behrmann
It is unclear whether individuals with autism are impaired at recognizing basic facial expressions, and whether, if any impairment exists, it applies to expression processing in general, or to certain expressions, in particular. To evaluate these alternatives, we adopted a fine-grained analysis of facial expression processing in autism. Specifically, we used the ‘facial expression megamix’ paradigm [Young, A. W., Rowland, D., Calder, A. J, Etcoff, N. L., Seth, A., & Perrett, D. I. (1997). Facial expression megamix: Tests of dimensional and category accounts of emotion recognition Cognition and Emotion, 14, 39–60] in which adults with autism and a typically …