This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Criado, J. R. Articles by Otis, S. M. Search for Related Content PubMed Articles by Criado, J. R. Articles by Otis, S. M. Social Bookmarking                         What's this?

Using Magnetoencephalography to Study Patterns of Brain Magnetic Activity in Alzheimer’s Disease

Brain Research and Treatment Center, Division of Neurology, Scripps Clinic, La Jolla, California, criado.jose{at}scrippshealth.org

Carlos Amo, MD, PhD

Brain Research and Treatment Center, Division of Neurology, Scripps Clinic, La Jolla, California

Patti Quint, BS

Brain Research and Treatment Center, Division of Neurology, Scripps Clinic, La Jolla, California

Lacey Kurelowech

Brain Research and Treatment Center, Division of Neurology, Scripps Clinic, La Jolla, California

Shirley M. Otis, MD

Brain Research and Treatment Center, Division of Neurology, Scripps Clinic, La Jolla, California

The use of magnetoencephalography to study neurophysiologic abnormalities associated with Alzheimer’s disease is reviewed. The most consistent observation is that Alzheimer’s disease patients exhibit an increase in focal slow-wave activity that covaried with cognitive performance. It is still unclear whether generation of focal slow-wave activity precedes or is a consequence of Alzheimer’s disease-related neuropathology. Also reviewed is the use of magnetoencephalography to identify early functional changes preceding the diagnosis of dementia. Magnetoencephalography detected neurophysiologic abnormalities associated with cognitive deficits before the diagnosis of mild cognitive impairment. This is supported by evidence presented suggesting that some patients with subjective cognitive complaints, without evidence of dementia, show an increase in focal slow-wave generators. Further research is needed to determine whether the outstanding spatial and temporal resolution of the magnetoencephalography technique could complement other neuroimaging techniques in identifying neurophysiologic abnormalities preceding the diagnosis of Alzheimer’s disease and mild cognitive impairment.

Key Words: magnetoencephalography • dementia • slow-waves

American Journal of Alzheimer's Disease and Other Dementias®, Vol. 21, No. 6, 416-423 (2007)
DOI: 10.1177/1533317506293502


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?