Modafinil Studies – Modafinil Promotes Enhanced Centrality In Elderly Subjects

does modafinil study help the elderleyThis is the first of many posts to come looking at scientific modafinil studies conducted over the last few years. As a wakefulness promoting agent, modafinil’s affects are well known when used in healthy individuals. This study below seeks to find out what the effects are on elderly populations – does modafinil help the elderly function better?

MODAFINIL-INDUCED CHANGES IN FUNCTIONAL CONNECTIVITY IN THE CORTEX AND CEREBELLUM OF HEALTHY ELDERLY SUBJECTS

Modafinil Study Abstract

In the past few years, cognitive enhancing drugs (CEDs) have gained growing interest and the focus of investigations aimed at exploring their use to potentiate the cognitive performances of healthy individuals. Most of this exploratory CED-related research has been performed on young adults. However, CEDs may also help to maintain optimal brain functioning or compensate for subtle and or subclinical deficits associated with brain aging or early-stage dementia. In this study, we assessed effects on resting state brain activity in a group of healthy elderly subjects undergoing acute administration of modafinil, a wakefulness-promoting agent. To that aim, participants (n = 24) were investigated with resting state functional Magnetic Resonance Imaging (rs-fMRI) before and after the administration of a single dose (100 mg) of modafinil. Effects were compared to age and size-matched placebo group. Rs-fMRI effects were assessed, employing a graph-based approach and Eigenvector Centrality (EC) analysis, by taking in account topological changes occurring in functional brain networks. The main finding of the study is that modafinil promotes enhanced centrality, a measure of the importance of nodes within functional networks, of the bilateral primary visual (V1) cortex. EC analysis also revealed that modafinil-treated subjects show increased functional connectivity between the V1 and specific cerebellar (Crus I, Crus II, VIIIa lobule) and frontal (right inferior frontal sulcus and left middle frontal gyrus) regions. Present findings provide functional data supporting the hypothesis that modafinil can modulate the cortico-cerebellar connectivity of the aging brain.

The full study can be found here – https://www.ncbi.nlm.nih.gov/pubmed/28424611

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