Group III metabotropic glutamate receptors (mGluRs) modulate transmission of gustatory inputs in the brain stem.
Hallock RM, Martyniuk CJ, Finger TE. Group III metabotropic glutamate receptors (mGluRs) modulate transmission of gustatory inputs in the brain stem. J Neurophysiol. 2009 Jul; 102(1):192-202.