Slotnick B M, McBride S A
Department of Psychology, American University, Washington, DC 20016.
Physiol Behav. 1990 Apr;47(4):777-8. doi: 10.1016/0031-9384(90)90094-k.
An electrode carrier mounted in a T-slot holder is described. An electronic circuit detects the vertical displacement of the carrier in the T-slot when an electrode encounters the base of the skull. Use of this vertical coordinate can reduce errors in locating structures at or close to the base of the brain.