Traveling-wave Transcranial Electric Stimulation

Precision Transcranial Electric Stimulation for the Therapy of Cognitive Impairment

This study will assess the impact of traveling wave transcranial alternating current stimulation (tACS) on working memory performance in adults.

Transcranial alternating current stimulation (tACS) can non-invasively alter neuroelectric activity in the brain by applying weak time-varying electric currents via the scalp. Complex patterns of electric brain activity can take the form of traveling waves - spatially coherent brain rhythms that gradually propagate through the neocortex. Traveling waves are crucial for the temporal coordination of informational flow in the brain. Using the novel traveling-wave transcranial alternating current stimulation (tACS) approach, the investigators will explore the effects of frontal-to-parietal and parietal-to-frontal traveling waves on working memory performance and brain electrophysiology in adults.

Inclusion Criteria:

1. Age between 18 and 45 years old.
2. Confident level of English language.

Exclusion Criteria:

1. History or evidence of chronic neurological or mental disorder.
2. Metal or electric implant in the head, neck, or chest area.
3. History of head injuries with loss of consciousness.
4. Any acute or chronic medical condition that requires ongoing pharmacological treatment.
5. Pregnancy or breast-feeding.
6. Alcohol or drug addiction.