There has always been a lot of interest in accelerating brain function with the use of drugs and chemicals but I'm not aware of anything yet that stimulates the hippocampus to store long term memory.
Editors Contribution(0.00 / 0 votes)Rate this definition: alternating current. Is a type of electric current that changes direction periodically during the cycle. Alternating current is a type of electric current used in most household electricity systems in the US and throughout Europe.
The main difference between the two is in how the current flows. Direct current, commonly abbreviated as DC, flows uniformly in one direction while alternating current, also commonly abbreviated as AC, changes direction at a given rate or frequency. The main consequence of this is the polarity of the voltage.