Sangam: A Confluence of Knowledge Streams

Oxytocin administration and emotion-related startle in psychopaths : a yawn and startle study.

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dc.contributor Stanford, Matthew S.
dc.creator Rundle, Brian Kelly, 1986-
dc.date 2015-03-18T18:03:19Z
dc.date 2015-03-18T18:03:19Z
dc.date 2014-12
dc.date 2014-11-13
dc.date December 2014
dc.date 2015-03-18T18:03:19Z
dc.date.accessioned 2022-05-18T12:28:48Z
dc.date.available 2022-05-18T12:28:48Z
dc.identifier http://hdl.handle.net/2104/9254
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/31679
dc.description Psychopathy is characterized by a general antisocial lifestyle with behaviors including being selfish, manipulative, impulsive, fearless, callous, possibly domineering, and particularly lacking in empathy. Contagious yawning in our species has been strongly linked to empathy. We exposed 133 students, male and female, who completed a self-report Psychopathic Personality Inventory (Revised), to a yawning paradigm intended to induce a reactionary yawn. Further, we exposed males to an emotion-related startle paradigm meant to assess peripheral amygdalar reactivity. We found that those at or above clinical levels of the PPI - R subscale Coldheartedness were significantly less likely to yawn, χ2(1, N = 123) = 7.051, p = .008. Other subscales were not significant. Further, we found that difference scores in peak amplitudes between Negative and Neutral stimuli in the startle paradigm were predictive of frequency of yawning (β =-.383, p =.007). These data suggest that psychopathic traits may be strongly related to the empathic nature of contagious yawning in our species.
dc.format application/pdf
dc.format application/pdf
dc.format application/pdf
dc.format application/pdf
dc.language en
dc.rights Worldwide access.
dc.subject Psychopathy. Contagious yawning. PPI-R. Psychopathic personality inventory. Startle. Emotion related startle. IAPS. Empathy. Oxytocin.
dc.title Oxytocin administration and emotion-related startle in psychopaths : a yawn and startle study.
dc.type Thesis
dc.type text


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