Jonathan Worth Howard1, John D. Beaver1, Rexford D. Newbould1
1GlaxoSmithKline, Clinical Imaging
Although the response to taste stimulus may be useful in several areas of neuroscience, fMRI is rarely used in conjunction with gustatory stimulus. A major problem with gustatory stimulus apparatus is the use of long tubing, connecting computer-controlled pumps in the control room to the subjects mouth. This results in a messy and difficult setup, imprecise liquid delivery, and problems with off-cue drips eliciting responses. In this study these problems are overcome using a hydraulic relay system that allows the use of short tubing, for rapid setup, replacement, and precise delivery of reward stimuli.