Alzheimer Disease, Mild Cognitive Impairment
Conditions
Keywords
Dementia, Memory, Transcranial direct current stimulation (tDCS), Magnetic resonance imaging (MRI)
Brief summary
The investigators have developed a low-risk transcranial Electrical Stimulation (tES) treatment that has improved learning and performance in young adults up to nearly 4 times when compared with a sham control. This randomized pilot trial will determine if this same tES protocol improves memory in older adults (50-90 years old) who are healthy, and separately in older adults with mild cognitive impairment (MCI) or early stage Alzheimer's disease (AD). TES will be applied to the right temple and left arm for up to 40 minutes. MRI images, along with other measures, may be obtained before and after tES. If effective, this intervention may help to improve the quality of life for AD patients and their families.
Interventions
tES device model Activadose II (North Coast Medical, Morgan Hill, CA, USA) programed to deliver tES.
Sponsors
Study design
Eligibility
Inclusion criteria
Inclusion criteria for healthy participants: 1. 50-90 years of age, as verified via photo identification with date of birth. 2. Should be right-handed and learned English by seven years old. 3. Generally healthy Inclusion criteria for participants with MCI or AD: 1. 50-90 years of age, as verified via photo identification with date of birth. 2. Should be right-handed and learned English by seven years old. 3. Is legally able to sign the consent form on their own behalf, or has a legally authorized representative that is able to sign. 4. Has a caregiver that can assist with taking health history.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Learning Task Performance | Within one hour after treatment | Performance accuracy on a complex visual learning and categorization task after full-current tES in comparison to partial-current tES. |
Countries
United States