Why tACS?
Learn about transcranial Alternating Current Stimulation
What is tACS?
tACS is a fancier type of brain stimulation.
With tACS, the electrical current increases and decreases like a wave function. Compare this to tDCS which has a contsant current level.
tACS researchers use specific frequencies of tACS stimulation to influence known brainwaves e.g. Alpha waves, Gamma waves
0.5 - 3 Hz
Delta Waves
Delta waves are very slow. Most typically seem during sleep.
δ-tACS
4 - 8 Hz
Theta Waves
Theta waves occur during early sleep stages.
θ-tACS
8 - 12 Hz
Alpha Waves
α-tACS
12 - 30 Hz
Beta Waves
β-tACS
30+ Hz
Gamma Waves
New interest in studying higher Gamma Wave activity.
γ-tACS
Below Delta is the Infra-Low range at 0 – 0.5Hz, also known as Slow-Cortical Potentials.
tACS Studies by Frequency
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