The relation between schizotypy and early attention to rejecting interactions: The influence of neuroticism. (17th November 2015)

• Record Type: Journal Article
• Authors: Premkumar, Preethi; Onwumere, Juliana; Albert, Jacobo; Kessel, Dominique; Kumari, Veena; Kuipers, Elizabeth; Carretié, Luis
• Is Part Of: World journal of biological psychiatry. Volume 16:Number 8(2015)
• Page Start: 587
• Page End: 601
• Publication Date: 2015-11-17
• Subjects: Anxiety -- attention -- event-related brain potentials -- personality -- psychosis; Biological psychiatry -- Periodicals; Biological Psychiatry -- Periodicals; 616.89
• DOI: 10.3109/15622975.2015.1073855
• Languages: English
• ISSNs: 1562-2975

Abstract

Abstract: Objectives : Schizotypy relates to rejection sensitivity (anxiety reflecting an expectancy of social exclusion) and neuroticism (excessive evaluation of negative emotions). Positive schizotypy (e.g., perceptual aberrations and odd beliefs) and negative schizotypy (e.g., social and physical anhedonia) could relate to altered attention to rejection because of neuroticism. Methods : Forty-one healthy individuals were assessed on positive and negative schizotypy and neuroticism, and event-related potentials during rejecting, accepting and neutral scenes. Participants were categorised into high, moderate and low neuroticism groups. Using temporo-spatial principal components analyses, P200 (peak latency =290 ms) and P300 amplitudes (peak latency = 390 ms) were measured, reflecting mobilisation of attention and early attention, respectively. Results : Scalp-level and cortical source analysis revealed elevated fronto-parietal N300/P300 amplitude and P200-related dorsal anterior cingulate current density during rejection than acceptance/neutral scenes. Positive schizotypy related inversely to parietal P200 amplitude during rejection. Negative schizotypy related positively to P200 middle occipital current density. Negative schizotypy related positively to parietal P300, where the association was stronger in high and moderate, than low, neuroticism groups. Conclusions : Positive and negative schizotypy relate divergently to attention to rejection. Positive schizotypy attenuates, but negative schizotypy increases rejection-related mobilisation of attention. Negative schizotypy increases early attention to rejection partly due to elevated neuroticism.