Targeted Transcranial Magnetic Stimulation to Improve Hippocampal-dependent Declarative Memory Abilities
Mild Cognitive Impairment, Memory Loss
About this trial
This is an interventional basic science trial for Mild Cognitive Impairment
Eligibility Criteria
The investigators anticipate enrolling 48 subjects total:
- 16 healthy young adults (age 19-35)
- 16 healthy older adults (demographically matched to aMCI group for age, sex, and educational attainment)
- 16 older adults diagnosed with amnestic mild cognitive impairment (aMCI)
Inclusion Criteria:
- Adults 19 years of age and older
- Healthy adults without history of psychiatric or neurological disease OR previous diagnosis of amnestic MCI
- Must be able to provide informed consent
- Must have the ability to comply with basic instructions and have the ability to sit comfortably still for TMS, neuroimaging, and other study procedures.
- Right-handed based on self-report (pre-screening) and evaluation with a standard test.
Exclusion Criteria:
- Individuals who have ferrous metal implanted in their body (other than in their teeth) or any other non-removable medical and/or metallic implant
- Individuals who have increased intracranial pressure
- Individuals who have any major medical illness (e.g., cancer, HIV+, hepatitis, heart disease)
- Individuals who have confounding/dual diagnoses (e.g., comorbid mental illness and substance use disorder)
- Individuals with current diagnoses of alcohol or substance abuse/dependence
- Individuals with epilepsy, any history of seizures, or using medication that lowers seizure threshold
- Individuals with any neurological disorder other than aMCI (e.g., stroke, traumatic brain injury)
- Pregnant females --- as determined by urine pregnancy test --- will be excluded from this study due to uncertainty of the effects of MRI and TMS on the fetus
- Not right-handed based on self-report (pre-screening) or evaluation with a standard test
- Not a native English speaker.
Sites / Locations
- University of Nebraska Medical CenterRecruiting
Arms of the Study
Arm 1
Arm 2
Other
Other
Arm A: Stimulation then Sham
Arm B: Sham then Stimulation
All procedures are identical in both arms with the exception of the order of stimulation administration. In Arm A, transcranial magnetic stimulation (TMS) will be applied in the first week of participation, and sham stimulation will be applied in the second week of participation.
All procedures are identical in both arms with the exception of the order of stimulation administration. In Arm B, sham stimulation will be applied in the first week of participation, and transcranial magnetic stimulation (TMS) will be applied in the second week of participation.