Neural Control of Gait & Navigation in ADRD

ConditionAging
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age65-89
SponsorUniversity of Florida

About this trial

Brain network segregation, or independent functioning, declines with age and is associated with slower walking speed. Here, the investigators will determine the extent to which brain vestibular network segregation can be altered with bilateral vestibular cortical transcranial direct current stimulation (tDCS) in older adults with subjective cognitive decline. Participants will be randomly assigned to an active or sham stimulation condition. They will receive three, 20-minute sessions of tDCS while they are walking and performing cognitive tasks. MRI of the brain will be acquired before and after these three sessions.

Eligibility criteria

Qualifiers

Community dwelling men and women 18-35 years old or 65-89 years old

Ability to walk unassisted for ten minutes

Willingness to undergo all testing procedures

English speaking Additional Inclusion Criteria for those with SCD

Disqualifiers

Significant medical event requiring hospitalization in the past 6 months that has the potential to contaminate data being collected (fracture, hospitalization etc.)

Severe visual impairment or corrected visual acuity less than 20/40, which would preclude completion of the assessments

Inability to undergo brain imaging due to claustrophobia or implants such as pacemakers, heart valves, brain aneurysm clips, orthodontics, non-removable body jewelry, or shrapnel containing ferromagnetic metal

tDCS ineligibility for Aim 3 (history of epilepsy, medications that alter cortical excitability, etc.)

Trial design

Treatments tested in this trial

  • Transcranial direct current stimulation

Treatment groups

60 Participants
are divided into 2 treatment groups

Sponsors and collaborators

University of Florida

Lead sponsor

National Institute on Aging (NIA)

Collaborator