Low defensive cardiac reactivity as a physiological correlate of psychopathic fearlessness: Gender differences
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Título
Low defensive cardiac reactivity as a physiological correlate of psychopathic fearlessness: Gender differencesFecha de publicación
2023-07Editor
ElsevierISSN
0301-0511; 1873-6246Cita bibliográfica
Branchadell, V., Poy, R., Segarra, P., Ribes-Guardiola, P., & Moltó, J. (2023). Low Defensive Cardiac Reactivity as a Physiological Correlate of Psychopathic Fearlessness: Gender Differences. Biological Psychology, 181, 108617Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S0301051123001345Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Affective/interpersonal features of psychopathy have been consistently associated with diverse psychophysiological indicators of low threat sensitivity, suggesting an underlying deficit in the reactivity of the brain’s ... [+]
Affective/interpersonal features of psychopathy have been consistently associated with diverse psychophysiological indicators of low threat sensitivity, suggesting an underlying deficit in the reactivity of the brain’s defensive motivational system. This study examined the Cardiac Defense Response (CDR) —a complex pattern of heart rate changes in response to an aversive, intense, and unexpected stimulus— and its second accelerative component (A2), as a new physiological indicator of the fearlessness trait component of psychopathy. The differential contribution of dispositional fearlessness, externalizing proneness, and coldheartedness to the CDR pattern elicited during a defense psychophysiological test was examined in a mixed-gender sample of 156 undergraduates (62% women) assessed by the Psychopathic Personality Inventory-Revised (PPI-R). Higher PPI-R Fearless Dominance scores were related to lower heart rate changes throughout the CDR in women, but not in men. Further analyses on scales conforming the fearless dominance factor revealed that the hypothesized reduced A2 was specifically related to higher PPI-R Fearlessness scores only in women. Our findings provide initial evidence for the utility of the A2 to better understand the physiological aspects of fearlessness tendencies and its potential distinct manifestations across genders [-]
Publicado en
Biological Psychology, 2023, vol. 181Entidad financiadora
Ministerio de Ciencia, Innovación y Universidades
Identificador de la entidad financiadora
http://dx.doi.org/10.13039/501100011033
Código del proyecto o subvención
MICIU/ICTI2017-2020/ PID2019-104522GB-I00 | FPU18/01613
Título del proyecto o subvención
Mecanismos neurobiológicos de la maldad psicopática/crueldad (meanness/callousness): evidencia electrofisiológica desde el modelo triarquico de la psicopatía
Derechos de acceso
info:eu-repo/semantics/openAccess
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