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The temporal sensitivity to the tactile-induced Double Flash Illusion mediates the impact of beta oscillations on schizotypal personality traits.

Fotia, Francesca and Cooke, Jason and Van Dam, Loes and Ferri, Francesca and Romei, Vincenzo (2021) 'The temporal sensitivity to the tactile-induced Double Flash Illusion mediates the impact of beta oscillations on schizotypal personality traits.' Consciousness and Cognition, 91. ISSN 1053-8100

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Abstract

The coherent experience of the self and the world depends on the ability to integrate vs. segregate sensory information. Optimal temporal integration between the senses is mediated by oscillatory properties of neural activity. Previous research showed reduced temporal sensitivity to multisensory events in schizotypy, a personality trait linked to schizophrenia. Here we used the tactile-induced Double-Flash-Illusion (tDFI) to investigate the tactile-to-visual temporal sensitivity in schizotypy, as indexed by the temporal window of illusion (TWI) and its neural underpinnings. We measured EEG oscillations within the beta band, recently shown to correlate with the tDFI. We found individuals with higher schizotypal traits to have wider TWI and slower beta waves accounting for the temporal window within which they perceive the illusion. Our results indicate reduced tactile-to-visual temporal sensitivity to mediate the effect of slowed oscillatory beta activity on schizotypal personality traits. We conclude that slowed oscillatory patterns might constitute an early marker for psychosis proneness.

Item Type: Article
Uncontrolled Keywords: Multisensory Integration, Schizotypy, Temporal Sensitivity, Beta Oscillations
Divisions: Faculty of Science and Health > Psychology, Department of
Depositing User: Elements
Date Deposited: 07 Apr 2021 11:57
Last Modified: 02 Jul 2021 15:15
URI: http://repository.essex.ac.uk/id/eprint/30136

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