Chapter

Functional Markers of Cognition in Parkinson’s Disease

Paul J. Mattis and Maren Carbon

in Imaging in Parkinson’s Disease

Published in print September 2011 | ISBN: 9780195393484
Published online September 2011 | e-ISBN: 9780199914494 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195393484.003.0066
Functional Markers of Cognition in Parkinson’s Disease

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Cognitive and behavioral problems are common in patients with Parkinson’s disease (PD), with the prevalence of dementia in patients with PD conservatively estimated to range between 24% and 31%. Functional brain imaging with PET and fMRI has contributed greatly to the understanding of cognitive disturbances in PD and are reviewed in this chapter. The chapter discusses the characterization of specific rest-state spatial covariance patterns (metabolic networks) associated with cognitive dysfunction in PD patients. Also addressed is the utility of these networks for objectively evaluating the progression of PD-related cognitive manifestations and their response to treatment. In depth discussion is also provided of the disease-related changes in brain activation responses that take place during cognitive processing as highlighted by imaging studies of sequence learning tasks.

Keywords: Parkinson’s disease; brain metabolism; brain activation; cognition; dementia; sequence learning

Chapter.  6658 words.  Illustrated.

Subjects: Neuroscience

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