. Author manuscript; available in PMC: 2010 Mar 12.

Published in final edited form as: J Neurosurg. 2009 Jun;110(6):1304–1316. doi: 10.3171/2008.10.JNS08466

TABLE 3.

Significant units according to PCC of the firing rate versus velocity and position^*

Region	Speed	θ_v	cos(kx)	sin(kx)	cos(ky)	sin(ky)
SMA (80)	25.0 (20)	17.5 (14)	2.5 (2)	5.0 (4)	1.2 (1)	0.0 (0)
pre-SMA (86)	2.3 (2)	2.3 (2)	1.2 (1)	3.5 (3)	0.0 (0)	0.0 (0)
dACC (221)	4.1 (9)	3.2 (7)	1.8 (4)	4.1 (9)	0.5 (1)	2.7 (6)
vACC (192)	4.2 (8)	3.6 (7)	2.6 (5)	2.1 (4)	3.6 (7)	1.0 (2)
OFC (10)	0.0 (0)	0.0 (0)	0.0 (0)	0.0 (0)	0.0 (0)	0.0 (0)

Columns 2–7 show the percentage of significant units (numbers of units are in parentheses) of different kinematic parameters. Abbreviations: cos(kx), sin(kx), cos(ky), and sin(ky) = components of position (see Methods).