Fig. 4.
Laminar distribution of receptors for glutamate (AMPA, kainate, NMDA), GABA (GABAA, GABAB, GABAA/BZ), acetylcholine (M1, M2, M3), norepinephrine , serotonin (5-HT1A, 5-HT2), and dopamine (D1) in human areas PGp and PGa, and macaque areas Opt and PG. Color coding indicates receptor densities in fmol/mg protein. Blue tones indicate low densities and red tones high densities. For numeric information concerning receptor densities, see Table 2