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Functional connectivity in disorders of consciousness: methodological aspects and clinical relevance

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Abstract

This is a Quick Guide about the role of the functional connectivity in the Disorders of Consciousness (DOC). Recent studies on resting state (RS) in DOC, by using functional magnetic resonance imaging (fMRI), showed that functional connectivity is severely impaired above all in the default mode network (DMN). In the vegetative and minimally conscious state, DMN integrity seems to correlate with the level of remaining consciousness, offering the possibility of using this information for diagnostic and prognostic purposes. Although the two principal approaches used in the RS analysis showed several methodological difficulties, especially in DOC patients, functional brain imaging is currently being validated as a valuable addition to the standardized clinical assessments that are already in use.

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Conflict of interest

Silvia Marino, Lilla Bonanno, and Antonio Giorgio declare that they have no conflicts of interest.

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Authors and Affiliations

  1. Neurobioimaging Laboratory, IRCCS Centro Neurolesi “Bonino-Pulejo”, S.S. 113, Via Palermo, C.da Casazza, 98124, Messina, Italy

    Silvia Marino, Lilla Bonanno & Antonio Giorgio

  2. Department of Biomedical Sciences and Morphological and Functional Imaging, University of Messina, Messina, Italy

    Silvia Marino

Authors
  1. Silvia Marino
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  2. Lilla Bonanno
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  3. Antonio Giorgio
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Correspondence to Silvia Marino.

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Marino, S., Bonanno, L. & Giorgio, A. Functional connectivity in disorders of consciousness: methodological aspects and clinical relevance. Brain Imaging and Behavior 10, 604–608 (2016). https://doi.org/10.1007/s11682-015-9417-1

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