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tACS Language
Recruiting
18-85 years
All
Phase
N/A
120 participants needed
1 Location
Brief description of study
The research study is being conducted to test if a form of noninvasive brain stimulation,
called transcranial alternating current stimulation (tACS), will improve a person’s ability
to name objects more than fake tACS. TACS is a technique by which small electric
currents are applied to the scalp. This creates coordinated brain activity across the
brain. This study also involves electroencephalography (EEG). EEG is a method of
recording brain activity through electrodes placed on the scalp.
CURRENTLY, WE ARE RECRUITING HEALTHY PARTICIPANTS BETWEEN THE AGES OF 45 AND 85 YEARS OLD.
We will begin to recruit participants with aphasia in the spring of 2025.
Detailed description of study
The study involves at minimum 2 visits in which you will receive either real or fake (sham) stimulation. Everyone receives real and sham stimulation one time each across the two visits, but the order you receive real vs. sham is meant to be unknown to both you and the experimenter to avoid the potential for placebo effects.
Consent can be completed virtually (on Zoom, FaceTime, etc.) if preferred, as the consent process adds ~20-30 minutes to the first visit (see summary of visit activities below).
Generally, both visits involve the following (excluding consent procedures typically added to the first visit if not conducted beforehand):
- EEG and tACS equipment set up (10-20 minutes)
- Questionnaires asking about mood and sleep quality (5 minutes)
- Pre-stimulation resting (no task) EEG (4 minutes)
- Pre-stimulation task EEG (2 minutes)
- 10 minutes of tACS during a task
- Mid-stimulation resting (no task) EEG (2 minutes)
- 10 minutes of tACS during a task
- Post-stimulation resting (no task) EEG (2 minutes)
- Picture naming task with EEG (20 minutes)
- Attention task with EEG (5 minutes)
- Final post-stimulation resting (no task) EEG (2 minutes)
- Post session questionnaire about how you felt about stimulation (2 minutes)
Total time for each visit is approximately 2-3 hours.
WE WILL PAY YOU FOR YOUR TIME AT A RATE OF 20$ PER HOUR. WE WILL ALSO REIMBURSE YOU FOR YOUR TRAVEL UP TO $50 PER VISIT.
Eligibility of study
You may be eligible for this study if you meet the following criteria:
- Conditions: Healthy volunteer, Healthy patient studies
-
Age: Between 18 Years - 85 Years
-
Gender: All
Proficient in English
No history of a seizure in the last 6 months
No current psychiatric diagnoses or current substance abuse
Updated on
03 Nov 2024.
Study ID: 854139
Pre-Screener
