title: Understanding cognitive deficits in Alzheimer's disease based on neuroimaging findings.
abstract: Brain amyloid can be measured using positron emission tomography (PET). There are mixed reports regarding whether amyloid measures are correlated with measures of cognition (in particular memory), depending on the cohorts and cognitive domains assessed. In Alzheimer's disease (AD) patients and those at heightened risk for AD, cognitive performance may be related to the level and extent of classical AD pathology (amyloid plaques and neurofibrillary angles), but it is also influenced by neurodegeneration, neurocognitive reserve, and vascular health. We discuss what recent neuroimaging research has discovered about cognitive deficits in AD and offer suggestions for future research.
authors.affiliation: Imaging Genetics Center, Laboratory of Neuro Imaging, Department of Neurology, UCLA School of Medicine, Los Angeles, CA 90095, USA. Electronic address: braskie@usc.edu.
authors.forename: Meredith N
authors.initials: MN
authors.lastname: Braskie
authors.forename: Paul M
authors.initials: PM
authors.lastname: Thompson
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000473:pathology / Q000503:physiopathology*; D016229:Amyloid beta-Peptides / Q000502:physiology; D015415:Biomarkers / Q000378:metabolism; D001921:Brain / Q000098:blood supply / Q000473:pathology / Q000503:physiopathology*; D003071:Cognition / Q000502:physiology*; D006801:Humans; D059906:Neuroimaging; D049268:Positron-Emission Tomography
chemical_list: D016229:Amyloid beta-Peptides; D015415:Biomarkers
keywords: MRI; PET; dementia; executive function; memory; mild cognitive impairment
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