caa a22 4500 60620377X CHVBK 20210128100959.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s10484-015-9283-z doi (NATIONALLICENCE)springer-10.1007/s10484-015-9283-z Sex Differences in Affective Expression Among Individuals with Psychometrically Defined Schizotypy: Diagnostic Implications [Elektronische Daten] [Jonathan Mitchell, Katie Ragsdale, Jeffrey Bedwell, Deborah Beidel, Jeffrey Cassisi] The present investigation uses facial electromyography (fEMG) to measure patterns of affective expression in individuals with psychometrically defined schizotypy during presentation of neutral and negative visual images. Twenty-eight individuals with elevated schizotypal features and 20 healthy controls observed a series of images from the International Affective Picture System (IAPS) and provided self-report ratings of affective valence and arousal while their physiological responses were recorded. The groups were evenly divided by sex. A three-way interaction in fEMG measurement revealed that while males with psychometrically defined schizotypy demonstrated the expected pattern of blunted/constricted facial affective expression relative to male controls in the context of negative images, females displayed the opposite pattern. That is, females with psychometrically defined schizotypy demonstrated significant elevations in negative facial affective expression relative to female controls while viewing negative images. We argue that these findings corroborate previously reported impressions of sex differences in affective expression in schizotypy. We discuss implications for assessment and diagnostic procedures among individuals with disorders along the schizophrenia spectrum. Springer Science+Business Media New York, 2015 Facial EMG nationallicence Affective expression nationallicence Constricted affect nationallicence Schizotypy nationallicence Sex differences nationallicence Mitchell Jonathan Department of Psychology, University of Central Florida, 4111 Pictor Lane, 32816, Orlando, FL, USA aut Ragsdale Katie Department of Psychology, University of Central Florida, 4111 Pictor Lane, 32816, Orlando, FL, USA aut Bedwell Jeffrey Department of Psychology, University of Central Florida, 4111 Pictor Lane, 32816, Orlando, FL, USA aut Beidel Deborah Department of Psychology, University of Central Florida, 4111 Pictor Lane, 32816, Orlando, FL, USA aut Cassisi Jeffrey Department of Psychology, University of Central Florida, 4111 Pictor Lane, 32816, Orlando, FL, USA aut Applied Psychophysiology and Biofeedback Springer US; http://www.springer-ny.com 40/3(2015-09-01), 173-181 1090-0586 40:3<173 2015 40 10484 https://doi.org/10.1007/s10484-015-9283-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10484-015-9283-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mitchell Jonathan Department of Psychology, University of Central Florida, 4111 Pictor Lane, 32816, Orlando, FL, USA aut NATIONALLICENCE 700 1- Ragsdale Katie Department of Psychology, University of Central Florida, 4111 Pictor Lane, 32816, Orlando, FL, USA aut NATIONALLICENCE 700 1- Bedwell Jeffrey Department of Psychology, University of Central Florida, 4111 Pictor Lane, 32816, Orlando, FL, USA aut NATIONALLICENCE 700 1- Beidel Deborah Department of Psychology, University of Central Florida, 4111 Pictor Lane, 32816, Orlando, FL, USA aut NATIONALLICENCE 700 1- Cassisi Jeffrey Department of Psychology, University of Central Florida, 4111 Pictor Lane, 32816, Orlando, FL, USA aut NATIONALLICENCE 773 0- Applied Psychophysiology and Biofeedback Springer US; http://www.springer-ny.com 40/3(2015-09-01), 173-181 1090-0586 40:3<173 2015 40 10484