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      Emotional Meaning in Context in Relation to Hypomanic Personality Traits: An ERP Study

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          Abstract

          The ability to integrate contextual information is important for the comprehension of emotional and social situations. While some studies have shown that emotional processes and social cognition are impaired in people with hypomanic personality trait, no results have been reported concerning the neurophysiological processes mediating the processing of emotional information during the integration of contextual social information in this population. We therefore chose to conduct an ERP study dealing with the integration of emotional information in a population with hypomanic personality trait. Healthy participants were evaluated using the Hypomanic Personality Scale (HPS), and ERPs were recorded during a linguistic task in which participants silently read sentence pairs describing short social situations. 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. We analyzed the difference in the modulation of two components (N400 and LPC) in response to the emotional word present at the end of the “target” sentences as a function of the HPS score and the emotional valence of the context. Our results showed a possible modulation of the N400 component in response to both positive and negative context among the participants who scored high on the Mood Volatility subscale of the Hypomanic Personality Scale. These results seem to indicate that the participants with hypomanic personality traits exhibited specificities in the integration of emotions at the level of the early-mobilized neurocognitive processes (N400). Participants with hypomanic personality traits found it difficult to integrate negative emotional contexts, while simultaneously exhibiting an enhanced integration of positive emotional contexts.

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          Most cited references24

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          Development and validation of a scale for hypomanic personality.

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            Theory of mind deficits in bipolar affective disorder.

            N. Kerr (2003)
            Bipolar affective disorder patients often show cognitive deficits that are similar to those found in schizophrenia patients. Theory of mind (the ability to understand others' mental states) is compromised in currently ill schizophrenia patients. This study aimed to establish whether similar deficits are found in bipolar patients. We measured theory of mind ability in 20 bipolar-manic patients, 15 bipolar-depressed patients, 13 bipolar patients in remission and 15 normal controls. The task, which controlled for memory and comprehension, had previously been used in a study of schizophrenia patients. Impaired performance on theory of mind was found for both bipolar-depressed and bipolar-manic patients, even when memory was controlled for. No impairment was observed in the remitted patients. The manic patients scored lower than the remitted patients on a brief measure of intelligence; no other group differences in IQ were significant. Theory of mind deficits are found in currently symptomatic bipolar patients. These findings add to growing evidence that common mechanisms may contribute to bipolar affective disorder and schizophrenia.
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              Evidence for theory of mind deficits in euthymic patients with bipolar disorder.

              i) To investigate the subtle ToM (theory of mind) deficits in euthymic patients with bipolar disorder. ii) To investigate the impact of non-ToM cognitive deficits on ToM abilities. Forty-three euthymic patients with bipolar disorder and 30 healthy control subjects were involved in this study. ToM was assessed by the Eyes test and the Hinting task. Both groups were also evaluated with a comprehensive neuropsychological battery including tasks for basic emotion and face recognition. The patient group was impaired on both of the ToM tasks. The patient group also showed impairment in many cognitive tasks including tasks related to sustained attention. Even euthymic patients with bipolar disorder may be impaired in advanced ToM tasks. Executive dysfunction and some other cognitives deficits such as basic emotion recognition may be at least partly responsible for this result. Copyright 2005 Blackwell Munksgaard.
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                Author and article information

                Contributors
                Role: Editor
                Journal
                PLoS One
                PLoS ONE
                plos
                plosone
                PLoS ONE
                Public Library of Science (San Francisco, CA USA )
                1932-6203
                22 September 2015
                2015
                : 10
                : 9
                : e0138877
                Affiliations
                [1 ]Laboratoire Cognition, Santé, Socialisation, C2S, EA 6291, Université de Reims Champagne-Ardenne, Reims, France
                [2 ]Laboratoire d'Anthropologie et de Psychologie Cognitive et Sociale, LAPCOS, EA 7278, Université de Nice-Sophia Antipolis, Nice, France
                [3 ]Institut des Neurosciences de la Timone, CNRS UMR 7289, Marseille, France
                [4 ]Institut Universitaire de France, Paris, France
                University Zurich, SWITZERLAND
                Author notes

                Competing Interests: The authors have declared that no competing interests exist.

                Conceived and designed the experiments: ST GI PMP CBR. Performed the experiments: ST PG AC FT. Analyzed the data: ST PG. Contributed reagents/materials/analysis tools: ST PG. Wrote the paper: ST PG AC FT GI PMP CBR.

                Article
                PONE-D-15-01469
                10.1371/journal.pone.0138877
                4578890
                26394230
                ce3de419-79e7-418e-b5f6-5b9a77529761
                Copyright @ 2015

                This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited

                History
                : 14 January 2015
                : 4 September 2015
                Page count
                Figures: 2, Tables: 1, Pages: 11
                Funding
                This work was supported by the French Agence Nationale de la Recherche (ANR) (Grant number ANR- 11-EMCO-001 01) and the Conseil Régional Champagne-Ardenne.
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                Research Article
                Custom metadata
                All relevant data are within the paper and its Supporting Information files.

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