Table 1.

Forelimb motor map topography: movement representation size and localization

Forelimb movement	Cortical area (mm2)	AP coordinatesa (mm)	ML coordinatesb (mm)
Naive group
Complex
Elevate	0.575 ± 0.175	0.689 ± 0.116	2.396 ± 0.158
Grasp	0.513 ± 0.090	3.191 ± 0.107	2.326 ± 0.089
Reach	0.413 ± 0.095	1.547 ± 0.170	2.283 ± 0.102
Retract	1.025 ± 0.058	0.808 ± 0.070	3.165 ± 0.072
Simple
Digit flexion	0.288 ± 0.070	3.238 ± 0.101	2.200 ± 0.102
Elbow extension	0.194 ± 0.059	1.141 ± 0.480	2.447 ± 0.399
Elbow flexion	1.613 ± 0.194	1.115 ± 0.122	2.682 ± 0.096
Supination	0.025 ± 0.025	0.000 ± 0.000	1.875 ± 1.875
Wrist extension	0.663 ± 0.062	0.538 ± 0.196	2.887 ± 0.143
Reach-trained group
Complex
Elevate	0.694 ± 0.140	0.794 ± 0.114	2.420 ± 0.085
Grasp	0.472 ± 0.083	3.261 ± 0.039	2.511 ± 0.068
Reach	0.667 ± 0.143	1.616 ± 0.112	2.500 ± 0.084
Retract	1.111 ± 0.183	0.631 ± 0.085	3.347 ± 0.085
Simple
Digit flexion	0.306 ± 0.059	3.101 ± 0.087	2.461 ± 0.115
Elbow extension	0.167 ± 0.059	0.615 ± 0.342	2.694 ± 0.095
Elbow flexion	1.097 ± 0.209	1.360 ± 0.053	3.082 ± 0.080
Supination	0.056 ± 0.056	2.063 ± 2.063	4.188 ± 0.000
Wrist extension	0.444 ± 0.066	0.962 ± 0.320	2.893 ± 0.175

Data are reported as the mean ± SEM. AP, Anteroposterior; ML, mediolateral.

^a Coordinates are referenced to bregma in the coronal plane.

^b Coordinates are referenced to the sagittal suture.