Greater positive schizotypy relates to reduced N100 activity during rejection scenes

Premkumar, P ORCID: https://orcid.org/0000-0003-1934-6741, Onwumere, J, Wilson, D, Sumich, A ORCID: https://orcid.org/0000-0003-4333-8442, Castro, A, Kumari, V and Kuipers, E, 2014. Greater positive schizotypy relates to reduced N100 activity during rejection scenes. Neuropsychologia, 61. ISSN 0028-3932

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Abstract

Social anxiety due to rejection sensitivity (RS) exacerbates psychosis-like experiences in the general population. While reduced dorsal anterior cingulate cortex (dACC) activity during social rejection in high schizotypy has suggested self-distancing from rejection, earlier stages of mental processing such as feature encoding could also contribute to psychosis-like experiences. This study aimed to determine the stage of mental processing of social rejection that relates to positive schizotypy. Forty-one healthy participants were assessed for schizotypy and RS. Event-related potential amplitudes (ERPs) were measured at frontal, temporal and parieto-occipital sites and their cortical sources (dACC, temporal pole and lingual gyrus) at early (N100) and late (P300 and late slow wave, LSW) timeframes during rejection, acceptance and neutral scenes. ERPs were compared between social interaction types.

Item Type:	Journal article
Publication Title:	Neuropsychologia
Creators:	Premkumar, P., Onwumere, J., Wilson, D., Sumich, A., Castro, A., Kumari, V. and Kuipers, E.
Publisher:	Elsevier
Date:	2014
Volume:	61
ISSN:	0028-3932
Identifiers:	Number Type 10.1016/j.neuropsychologia.2014.06.031 DOI
Divisions:	Schools > School of Social Sciences
Record created by:	EPrints Services
Date Added:	09 Oct 2015 09:41
Last Modified:	09 Jun 2017 13:08
URI:	https://irep.ntu.ac.uk/id/eprint/1046

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