The restless brain: attention-deficit hyperactivity disorder, resting-state functional connectivity, and intrasubject variability.

Can J Psychiatry

Neidich Professor of Child and Adolescent Psychiatry, Phyllis Green and Randolph Côwen Institute for Pediatric Neuroscience, NYU Child Study Center, New York, New York, USA.

Published: October 2009

Objectives: To highlight recent advances in the conceptualization of attention-deficit hyperactivity disorder (ADHD) emerging from neuroimaging and endophenotypic approaches.

Methods: We selectively reviewed recent published literature on the phenomena of resting-state functional connectivity, intrasubject variability, and diffusion tensor imaging pertaining to ADHD.

Results: Recent advances based on the novel approach of resting-state functional connectivity appear to be highly promising and likely to link to studies of intrasubject variability.

Conclusions: Endophenotypic fractionation may offer a means of addressing the complex heterogeneity of ADHD on the path to testable models of pathophysiology. Such models focusing on intrasubject variability, intrinsic brain activity, and reward-related processing are progressing rapidly.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3876940PMC
http://dx.doi.org/10.1177/070674370905401003DOI Listing

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