Table 2.

Absolute receptor densities (mean ± sd in fmol/mg protein) of human areas PGp and PGa and their homologs in the macaque brain (Opt and PG, respectively)

	PGp	PGa	Opt	PG
AMPA	421 ± 176	377 ± 62	522 ± 108	571 ± 78
NMDA	1214 ± 306	1187 ± 395	1412 ± 187	1311 ± 278
Kainate	519 ± 397	553 ± 334	720 ± 96	674 ± 81
GABAA	1848 ± 482	1672 ± 524	1661 ± 226	1457 ± 282
GABAB	2303 ± 793	1889 ± 712	2049 ± 375	2067 ± 355
GABAA/BZ	3098 ± 1079	3349 ± 996	2152 ± 325	1942 ± 164
M1	621 ± 118	649 ± 95	995 ± 124	989 ± 111
M2	226 ± 59	227 ± 34	153 ± 44	132 ± 52
M3	1500 ± 121	1102 ± 321	831 ± 93	752 ± 104
α1	303 ± 149	299 ± 157	415 ± 39	434 ± 52
α2	159 ± 79	155 ± 51	289 ± 37	310 ± 44
5-HT1A	381 ± 185	369 ± 191	302 ± 59	388 ± 70
5-HT2	325 ± 144	382 ± 179	348 ± 87	342 ± 80
D1	84 ± 27	67 ± 31	87 ± 11	81 ± 9