“…These regions, reported to have NMDARs (Bernard and Bolam, 1998;Ikeda et al, 2003;Jarvis et al, 1987;Monaghan and Cotman, 1986;Pal et al, 1999;Petralia et al, 1994), included cerebral cortex, caudate-putamen, globus pallidus, hippocampus, substantia nigra, and nucleus accumbens. NMDA has also been reported to increase the regional cerebral metabolic rate for glucose, rCMR glc , a marker of axonal activity (Sokoloff, 1999), in the rat suprachiasmatic nucleus (Shibata et al, 1992), frontal cortex layers V-VI, globus pallidus, caudateputamen, substantia nigra, thalamus, nucleus accumbens, and lateral habenular nucleus (Browne et al, 1998).…”