Specific EEG changes associated with atrophy of hippocampus in subjects with mild cognitive impairment and Alzheimer's disease

D. V. Moretti, A. Prestia, C. Fracassi, G. Binetti, O. Zanetti, G. B. Frisoni

Research output: Contribution to journalArticlepeer-review

Abstract

We evaluated the association between hippocampal atrophy and increase of the EEG markers alpha3/alpha2 relative power ratio in mild cognitive impairment (MCI) and Alzheimer's disease patients. Seventy-nine subjects with MCI and 11 patients with AD underwent EEG recording and MRI scan. The MCI group was subdivided in three subgroups according to growing hippocampal atrophy. The groups were characterized by alpha3/alpha2 relative power ratio. In AD patients group mapped hippocampal regions were computed and related with alpha3/alpha2 power ratio. Results show that the increase of alpha3/alpha2 power ratio is correlated with atrophy of hippocampus both in MCI and in Alzheimer's disease patients. This finding confirms the possible diagnostic role of EEG markers as diagnostic and prognostic factors in patient with prodromal and declared Alzheimer's disease.

Original languageEnglish
Article number253153
JournalInternational Journal of Alzheimer's Disease
DOIs
Publication statusPublished - 2012

ASJC Scopus subject areas

  • Clinical Neurology
  • Behavioral Neuroscience
  • Cognitive Neuroscience
  • Ageing
  • Cellular and Molecular Neuroscience
  • Neurology

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