|
|
Regional binding
(fmol/mg tissue wet wt)
|
|
Brain region
|
M1
|
M2
|
Non-M1,
non-M2
|
|
Cerebral cortex
Frontoparietal cortex,
somatosensory area
|
|
|
|
|
Layers I-II
|
244
|
24
|
292
|
|
Layers III-IV
|
162
|
9
|
219
|
|
Layer V
|
132
|
15
|
238
|
|
Layer VI
|
166
|
9
|
179
|
|
Primary olfactory cotex
|
252
|
9
|
239
|
|
Subcortical telencephalon
|
|
|
|
|
Olfactory bulb, external
plexiform layer
|
149
|
57
|
340
|
|
Anterior olfactory nucleus
|
254
|
12
|
270
|
|
Olfactory tubercle
|
193
|
18
|
413
|
|
Lateral septum
|
52
|
25
|
191
|
|
Medial septum
|
26
|
22
|
76
|
|
Vertical limb, diagonal band
|
41
|
9
|
86
|
|
Islands of Calleja
|
243
|
24
|
417
|
|
Caudate putamen
|
263
|
27
|
389
|
|
Nucleus accumbens
|
228
|
15
|
371
|
|
Basolateral amygdala
|
204
|
16
|
156
|
|
Lateral amygdala
|
181
|
21
|
177
|
|
Hippocampal subfields
|
|
|
|
|
CA1, oriens
CA1, pyramidale
CA1, radiatum
CA3
Dentate gyrus
|
259
259
259
143
270
|
9
9
9
6
6
|
254
232
279
154
195
|
|
Diencephalon
Ventrolateral thalamic
nucleus
|
30
|
6
|
58
|
|
Anteroventral thalamic
nucleus
|
39
|
34
|
166
|
|
Medial geniculate nucleus
|
50
|
6
|
95
|
|
Anterior hypothalamic
nucleus
|
25
|
13
|
60
|
|
Ventromedial hypothalamic
nucleus
|
27
|
12
|
58
|
|
Mesencephalon
Superior colliculus
Inferior colliculus
Central gray
|
29
22
20
|
54
18
15
|
147
61
84
|
|
Rhombencephalon
Motor trigeminal nucleus
Cerebellum lobules
|
—
—
|
36
21
|
57
—
|