Neuronal Substrates Underlying Performance Variability in Well-Trained Skillful Motor Task in Humans

Table 2

Brain regions where activity was related to the occurrence of movement errors (ERROR image).

Brain areas	Coordinates of peaks			-value
	Right hemisphere
ACC	6	32	28	3.53
MCC	10	20	42	4.16
IFG	52	14	−2	3.51
44	56	12	8	3.69
6	8	18	58	3.96
Insula	40	18	−4	3.70
Thalamus	12	−14	12	3.52
Left hemisphere
ACC	−4	26	28	3.76
MCC	−8	20	38	4.01
44	−38	20	12	3.78
SFG	−14	12	48	3.67
Insula	−32	20	4	4.37
SMG	−2	18	42	4.19
Thalamus	−4	−18	12	4.44

For anatomical identification of peaks, we used the same criterion adopted in Table 1. ACC: anterior cingulate cortex. MCC: middle cingulate cortex. IFG: inferior frontal gyrus. SFG: superior frontal gyrus. SMG: superior medial gyrus.