Table 1.

The axonal length of dopaminergic neurons in the striatum

TH-positive neuron	Position (tier)	Length of axon fibers (in μm)^{^a}			Striosome rate (%)^{^b}
TH-positive neuron	Position (tier)	In matrix (x)	In striosome (y)	Total (z)	Striosome rate (%)^{^b}
1	Dorsal	638,332	141,601	779,933	18.2
2	Dorsal	402,242	63,660	465,902	13.7
3	Dorsal	130,981	7512	138,493	5.4
4	Dorsal	245,004	33,982	278,986	12.2
5	Dorsal	415,437	19,072	434,509	4.4
6	Ventral	438,992	86,407	525,399	16.4
7	Ventral	288,105	216,055	504,160	42.9
8	Ventral	475,978	131,291	607,269	21.6
Average ± SD		379,384 ± 155,772	87,448 ± 71,599	466,831 ± 195,198	16.8 ± 12.1

↵^aThe length of axon fibers was estimated by multiplying the length of axon fibers projected onto a parasagittal plane by π /2 (when straight fibers having unit length and distributed in three-dimensionally random direction are projected to a plane, the mean length of projected fibers was 2/π).
↵^by/z × 100.