Blunted startle reactivity in everyday sadism and psychopathy

Abstract Two studies examined the amplitude of the startle response as a function of the Dark Tetrad of personality (narcissism, Machiavellianism, psychopathy, and sadism). We measured electromyographic activity of the orbicularis oculi muscle evoked by a startle stimulus while participants viewed i...

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Bibliographic Details
Main Authors: Erin E. Buckels, Douglas A. Williams, Paul D. Trapnell, Siavash Kermani Koosheh, Owen M. Javra, Sasha C. Svenne
Format: Article
Language:English
Published: Nature Portfolio 2023-08-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-41043-2