RecruitingNot ApplicableNCT05998031

A Mechanistic Study to Investigate tDCS and Working Memory in MCI Patients

Sponsor

University of Florida

Enrollment

110 participants

Start Date

Apr 24, 2024

Study Type

INTERVENTIONAL

Conditions

Cognitive Impairment Cognitive Decline

Summary

The current study is a mechanistic study to evaluate working memory gains from application of transcranial direct current stimulation (tDCS) in older adults with mild cognitive impairments (MCI) compared to cognitively healthy control

Eligibility

Min Age: 60 YearsMax Age: 95 Years

Plain Language Summary

Simplified for easier understanding

This clinical trial is studying a medical device called Active tDCS and a medical device called Sham tDCS for people with cognitive decline and cognitive impairment. The study is currently recruiting participants at 1 location. People eligible for this study include aged 60 Years to 95 Years.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

DEVICEActive tDCS

A neuroConn MR-safe 1x1 tDCS stimulator will be used to apply 12 minutes of 2.0 mA electrical current, with 30 seconds ramps up and 30 seconds ramps down. The electrical current will be applied by using two carbon rubber electrodes (one anode, one cathode) with added ten20 conductive paste. The electrode+paste will be affixed on the participant's scalp over the frontal cortices at F3 and F4 location (EEG 10-20 system). Inflow of current (anode) will occur at F4 location, and outflow of current will occur at F3 (cathode).

DEVICESham tDCS

Sham stimulation will be performed with the same 1x1 device. Participants will receive 2 mA of direct current stimulation for 30 seconds with 30 seconds ramps up and down. This provides the tingling and prickling sensation on the scalp associated with tDCS while prevent delivering sufficient current (12 minutes) to penetrate the skull and stimulate the brain. Prep in sham conditions will be identical to active stimulation conditions. For each stimulation condition (active, sham), each participant will perform three runs of N-back working memory task (baseline/pre-stimulation, during stimulation, and after/post-stimulation) as detailed below. Sham efficacy will be evaluated as a direct comparison in N-back performance and connectivity results in active group versus sham group.