Mild-to-moderate schizotypal traits relate to physiological arousal from social stress

Journal article


Premkumar, P., Alahakoon, P., Smith, M., Kumari, V., Babu, D. and Baker, J. (2020). Mild-to-moderate schizotypal traits relate to physiological arousal from social stress. Stress. https://doi.org/10.1080/10253890.2020.1797674
AuthorsPremkumar, P., Alahakoon, P., Smith, M., Kumari, V., Babu, D. and Baker, J.
Abstract

Schizotypy denotes psychosis-like experiences, such as perceptual aberration, magical ideation, and social anxiety. Altered physiological arousal from social stress is found in people with high schizotypal traits. Two experiments aimed to determine the relationship of schizotypy to physiological arousal from social stress. Experiment 1 tested the hypotheses that heart rate from social stress would be greater in high, than mild-to-moderate, schizotypal traits, and disorganized schizotypy would explain this effect because of distress from disorganisation. Experiment 1 tested social stress in 16 participants with high schizotypal traits and 10 participants with mild-to-moderate schizotypal traits. The social stress test consisted of a public speech and an informal discussion with strangers. The high schizotypal group had a higher heart rate than the mild-to-moderate schizotypal group during the informal discussion with strangers, but not during the public speech. Disorganized schizotypy accounted for this group difference. Experiment 2 tested the hypothesis that mild-to-moderate schizotypal traits would have a linear relationship with physiological arousal from social stress. Experiment 2 tested 24 participants with mild-to-moderate schizotypal traits performing the abovementioned social stress test while their heart rate and skin conductance responses were measured. Mild-to-moderate schizotypal traits had a linear relationship with physiological arousal during the discussion with strangers. Distress in disorganized schizotypy may explain the heightened arousal from close social interaction with strangers in high schizotypy than mild-to-moderate schizotypy. Mild-to-moderate schizotypal traits may have a linear relationship with HR during close social interaction because of difficulty with acclimatizing to the social interaction.

KeywordsHeart rate, schizotypy, skin conductance, social stress, physiological arousal, public speech
Year2020
JournalStress
PublisherTaylor & Francis
Digital Object Identifier (DOI)https://doi.org/10.1080/10253890.2020.1797674
Web address (URL)https://www.tandfonline.com/doi/full/10.1080/10253890.2020.1797674?scroll=top&needAccess=true
Publication dates
Print29 Jul 2020
Publication process dates
Accepted20 Jul 2020
Deposited13 Oct 2020
Accepted author manuscript
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File Access Level
Open
Additional information

This is an Accepted Manuscript of an article published by Taylor & Francis in Stress on 14/02/2020, available online: http://www.tandfonline.com/10.1080/10253890.2020.1797674

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