Table II.

Foci of significant rCBF increase during chopstick compared to finger prehension

Regional of rCBF increase	(BA)	Side	MNI image coordinates of peak activation			Z score of peak activation	r‐value
			x	y	z		Performance errors	Reach‐lift period
Primary sensory area	(2.3)	L	−56	−16	30	5.65	0.13	−0.10
Dorsal premotor area	(6)	L	−32	−4	44	5.41	0.27	0.01
	(6)	L	−40	−6	44	5.14	−0.09	0.16
	(6)	R	22	−6	58	5.03	0.38	0.24
Ventral premotor area	(6)	L	−60	4	32	5.28	−0.32	0.27
	(6)	L	−58	2	36	4.95	−0.13	0.17
Superior parietal lobule	(7)	L	−14	−70	54	5.34	−0.16	0.07
	(7)	L	−16	−76	52	5.00	−0.17	−0.26
	(7)	R	22	−64	70	5.38	−0.06	−0.29
	(7)	R	18	−66	70	5.35	0.01	−0.63*
Posterior intraparietal area	(7)	R	32	−64	64	5.30	−0.61*	−0.03
	(7)	R	12	−70	48	4.93	−0.20	−0.20
Middle temporal gyrus	(37)	L	−40	−72	0	4.89	0.43	0.02
Secondary visual area	(18)	R	34	−88	−2	5.88	0.65*	0.07
	(18)	R	32	−86	−6	5.43	0.71*	0.18
	(18)	R	26	−100	0	5.36	−0.16	0.38
	(18)	R	26	−102	4	5.34	0.15	0.41
	(19)	R	36	−88	4	5.01	−0.11	−0.35
Dentate nucleus		L	−18	−46	−24	5.37	0.47	0.01
Cerebellar hemisphere		L	−28	−58	−36	6.07	0.45	0.28
		L	−22	−72	−28	5.05	0.33	0.29
		L	−26	−44	−44	5.02	0.42	−0.17

The areas of significant activation were determined by the exclusive masking analysis (corrected P < 0.05). The r‐values indicate correlation coefficients computed between the magnitude of rCBF and the number of performance errors, and the rCBF magnitude and reach‐lift period.

^* P < 0.05.