Sensory-Evoked Cortical Gamma Oscillation

Status Recruiting

Clinical Trial Summary

The purpose of the study is to investigate the efficacy of cortical gamma oscillation on visual sensory processing and cognitive function in Alzheimer's Disease (AD) patients by combining a therapeutic sensory stimulation device capable of evoking 40-Hz gamma oscillation via non-invasive visual and auditory stimulation with pre-established markers of cortical network activity, i.e., electroencephalography (EEG) and event-related potentials (ERP), to evaluate the applicability of the 40-Hz multimodel sensory stimulation as a novel therapeutic approach for treatment of AD patients.

Clinical Trial Description

The central hypothesis of the study is that sustained 40Hz gamma oscillatory sensory stimulation therapy will improve cognitive function in patients with AD. The further hypothesis is that the improvement in cognitive function will result from improved connectivity and cortical network function as measured by EEG and ERP. The hypotheses will be tested by the following: 1. - Elucidate the immediate impact of gamma oscillations on sensory processing and cognitive function by assessing cognitive function and cortical network function prior to the introduction of sensory stimulation and comparing it to post-therapeutic assessments immediately following the acute administration of therapy on visual processing. 2. - Explore the short and long-term therapeutic benefits of a sub-chronic (8 weeks) treatment by assessing cognitive function and cortical network connectivity immediately after the 8 week sensory stimulation therapy. If significant changes are observed between pre-therapy and post-therapy neurophysiologic data for an individual subject, neurophysiological testing will be repeated 4 weeks following the conclusion of therapy. 3. - Investigate the correlation between neurophysiology and cognitive function by assessing cognitive function and neurophysiological measures of cortical network activity at multiple time points to determine if therapeutic changes in one domain reflect changes related to the other domain. ;

Study Design

Related Conditions & MeSH terms

Alzheimer Disease

Clinical Trial Details

NCT number	NCT05206305
Study type	Interventional
Source	University of Tennessee Medical Center
Contact	Roberto Fernandez-Romero, MD
Phone	865-305-7242
Email	rfernandez@utmck.edu
Status	Recruiting
Phase	N/A
Start date	July 1, 2022
Completion date	June 30, 2026

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.