Since a patients BIS {HEAD ~ sensitivity} to stimulation depends on hypnosis state, {TAIL ~ a scaling factor} α is introduced 
depends on
Since a patients BIS { HEAD ~ sensitivity } to stimulation depends on hypnosis state , { TAIL ~ a scaling factor } α is introduced
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH