Abstract
IntroductionCholinesterase inhibitors can enhance cognitive functions in healthy elderly and delay cognitive decline in patients with Alzheimer`s disease (AD). However, not everyone benefits from this treatment (non‐responders). Current studies show clinical meaningful improvements only in one third of AD patients treated with cholinesterase inhibitors.MethodsHere we investigate structural magnetic resonance imaging of the basal forebrain cholinergic system volume (BFvol) as a potential predictor of cognitive response to a single dose of galantamine in healthy adults (n = 18; 59 to 75 years).ResultsWe observed that the cognitive response to galantamine, more specifically the attention‐dependent filtering performance in a delayed match‐to‐sample working memory task, correlated with BFvol: Only participants with high BFvol showed a significant positive effect of galantamine on the ability to filter out distracting information during the working memory encoding process.DiscussionFuture studies need to assess whether BFvol may serve as a predictor of the galantamine response in AD patients, too.
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