Electrophysiological correlates of emotional meaning in context in relation to facets of schizotypal personality traits: A dimensional study.
OBJECTIVE
The aim of this study was to investigate the neurocognitive processes mediating the processing of emotional information during the integration of contextual and social information in a schizotypal population.


METHODS
One hundred and thirty-one healthy participants were evaluated using the Schizotypal Personality Questionnaire and event-related potentials were recorded during a linguistic task in which participants read sentence pairs describing short social situations to themselves. The first sentence implicitly conveyed the positive or negative emotional state of a character. The second sentence was emotionally congruent or incongruent with the first sentence.


RESULTS
Across our overall sample, our results revealed a greater N400 effect at right sites than left sites, whereas the late positive component effect was only observed at left sites. Concerning the correlation results, we observed a negative link between positive and global schizotypy and N400 modulation in response to congruent targets for positive context sentences. Results also showed a positive correlation between negative schizotypy and late positive component modulation in response to congruent targets for negative context sentences.


CONCLUSIONS
These results suggest that the different facets of the schizotypal personality traits influenced the integration of emotional context at the level of both early and later-mobilized neurocognitive processes.
Cognition, Health, Socialisation Laboratory, University of Reims Champagne-Ardenne, Reims.
Sarah
S
Terrien
Cognition, Health, Socialisation Laboratory, University of Reims Champagne-Ardenne, Reims.
Pamela
P
Gobin
Anthropology, Cognitive and Social Psychology Laboratory, LAPCOS, University of Nice-Sophia Antipolis, Nice.
Galina
G
Iakimova
Anthropology, Cognitive and Social Psychology Laboratory, LAPCOS, University of Nice-Sophia Antipolis, Nice.
Alexandre
A
Coutté
Timone Neuroscience Institute, Marseille.
Flavien
F
Thuaire
Cognition, Health, Socialisation Laboratory, University of Reims Champagne-Ardenne, Reims.
Véronique
V
Baltazart
Timone Neuroscience Institute, Marseille.
Pascale
P
Mazzola-Pomietto
Cognition, Health, Socialisation Laboratory, University of Reims Champagne-Ardenne, Reims.|French Universitary Institute, Paris, France.
Chrystel
C
Besche-Richard
D004644:Emotions / Q000502:physiology*; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011932:Reading; D012569:Schizotypal Personality Disorder / Q000503:physiopathology* / Q000523:psychology; D055815:Young Adult
N400; emotional context; late positive component; schizotypy; vulnerability