Poster De Conférence Année : 2010

Deficit in emotional facial expression recognition in multiple sclerosis and interhemispheric transfer.

Résumé

BACKGROUND: A deficit in recognition of emotional facial expression has been highlighted in MS-patients (Henry et al., 2009, Krause et al., 2009). This ability dependent from a neural network distributed on both sides of the corpus callosum (CC). This deficit could be envisaged, partly as a consequence of abnormalities of the CC due to the distributed neural processing of emotional information and the benefit of interhemispheric transfer (IHT) observed in healthy subjects in emotional treatment (Compton et al., 2005) . OBJECTIVE: This study evaluates the participation of a deficit of IHT in disorders of emotion recognition of relapsing-remitting MS patients (RRMS). METHOD: 50 RRMS patients and 21 healthy participants, matched for age and sex received a comprehensive cognitive assessment and assessment of alexithymia. In addition, subjects participated in a simple task of reaction time (RT) according to Poffenberger paradigm (1912) (classical poffenberger) and a task of RT to lateralized emotional stimuli (emotional facial expressions) (emotional Poffenberger), following by an emotional label. These tasks allowed to calculate the "crossed-uncrossed differential (CUD) for simple or emotional stimuli and was supplemented by a task of emotional facial expressions recognition. RESULTS: In all Poffenberger task, we observed a global decrease of RT in MS patients, more important in MS patients with emotional facial recognition deficit. In classic poffenberger RT, we observed a significant CUD only in the healthy participants. In contrast we observed an absence of CUD in RRMS patients, whatever there abilities to emotional facial recognition (normal or deteriorated). In emotional poffenberger, we observed a significant CUD only in patients without deficit in emotional facial recognition, but not in RRMS patients with deficit in emotional facial recognition and in healthy participants. Number of correct answer was lower in RRMS patients, especially for anger, fear and sadness. There was not observed effect of global cognitive deterioration and alexithymia. DISCUSSION/CONCLUSION: This study confirmed the presence of a deficit in the recognition of negative valence emotions in MS, not related to impairment of IHT of emotional information. So a global decrease of speed processing was observed in RRMS patients. However, in emotional IHT, only patients without emotional facial recognition deficit underlined a significant CUD. Patients with deficit were slowed as well as in crossed and uncrossed situation. This deficit seems not to be related to deficit in ITH but in global neural dysconnexion.

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Dates et versions

hal-04287185 , version 1 (15-11-2023)

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  • HAL Id : hal-04287185 , version 1

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Bruno Lenne, Jean-Louis Nandrino, Henrique Sequeira, Delphine Leuse, Patrick Hautecoeur. Deficit in emotional facial expression recognition in multiple sclerosis and interhemispheric transfer.. Congress of the European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS), 2010, Stockolm, Sweden. 16 (9), 2010. ⟨hal-04287185⟩

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