The cells in the human brain and the stimulation of them and also in non human animal by application which is direct and is an electric current or stimulus that is chemical (e.g. a hormone or neurotransmitter) See intercranial self stimulation

INTRACRANIAL STIMULATION (ICS): "Intracranial Stimulation (ICS) is the direct application of an electric current to stimulate the brain cells"
Cite this page: N., Pam M.S., "INTRACRANIAL STIMULATION (ICS)," in, May 11, 2013, (accessed May 18, 2021).