Differences in electroencephalography oscillations between normal aging and mild cognitive impairment during semantic memory retrieval.

ABSTRACT: Semantic memory remains relatively stable with normal cognitive aging and declines in early stages of neurodegenerative disease. We measured electroencephalography (EEG) oscillatory correlates of semantic memory retrieval to examine the effects of normal and pathological aging. Twenty-nine cognitively healthy young adults (YA), 22 cognitively healthy aging adults (HA) and 20 patients with mild cognitive impairment (MCI) completed a semantic memory retrieval task with concurrent EEG recording in which they judged whether two words (features of objects) led to retrieval of an object (retrieval) or not (non-retrieval). Event-related power changes contrasting the two conditions (retrieval vs. non-retrieval) within theta, alpha, low-beta and high-beta EEG frequency bands were examined for norma

SUBMITTER: Chiang HS 

PROVIDER: S-EPMC10531984 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature