• Enhance language and mathematical
ability, attention span, problem
solving, memory, and coordination.
• accepted maximum 2 mA, usually 1
mA or less
• stimulation time - 20 minutes
• 10 minutes - effects lasting for up to
• 48 hours to a week before repeating
• Studies indicates SAFETY in a SINGLE
• No studies about long-term safety of
repeated sessions of stimulation.