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Review
. 2012 Jun 1;4(7):2622-30.
doi: 10.2741/e578.

Emotional dysfunction as a marker of bipolar disorders

Chantal Henry  1 , Mary Phillips, Ellen Leibenluft, Katia M'Bailara, Josselin Houenou, Marion Leboyer
Affiliations
Review

Emotional dysfunction as a marker of bipolar disorders

Chantal Henry et al. Front Biosci (Elite Ed). .

Abstract

Background: Assessment of emotional reactivity, defined as rapid emotional responses to salient environmental events, has been neglected in mood disorders. This article reviews data showing the relevance of using emotional reactivity to better characterize bipolar mood episodes.

Method: We reviewed clinical data on emotional reactivity during all phases of bipolar disorders (euthymic, manic, mixed and depressive states) and brain-imaging, neurochemical, genetic studies related to emotional reactivity disturbances.

Result: Euthymic bipolar patients show mild abnormalities (hypersensitivity to emotional stimuli and higher arousability) in comparison to controls. Both manic and mixed states are characterized by a significant increase in emotional reactivity. Furthermore, emotional reactivity may discriminate between two types of bipolar depression, the first being characterized by emotional hypo-reactivity and global behavioral inhibition, the second by emotional hyper-reactivity. Brain-imaging studies can help to identify the underlying mechanisms involved in disturbances of emotional reactivity.

Conclusion: Emotional reactivity can be used to refine more homogeneous pathophysiological subtypes of mood episodes. Future research should explore possible correlations between biomarkers, response to treatments and these clinical phenotypes.

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