Table 4.

Mean LIs for the levels of all factors and statistics for the test of main effects of factors^a

	Factor	Level	Frontal lobule		Parietal lobule		Temporal lobule		Occipital lobule		Sensorimotor cortex
			Mean LI	Statistics	Mean LI	Statistics	Mean LI	Statistics	Mean LI	Statistics	Mean LI	Statistics
Planning phase
	Object	Tool	0.410	p = 0.011*	0.626	p = 0.001*	0.399	p = 0.014*	0.137	p = 0.018*	0.653	p = 0.004*
		Bar	0.250	F = 8.46	0.436	F = 18.49	0.285	F = 7.66	0.270	F = 7.01	0.426	F = 11.51
	Task	Use	0.298	p = 0.327	0.545	p = 0.605	0.343	p = 0.945	0.246	p = 0.062	0.594	p = 0.051*
		Transport	0.363	F = 1.02	0.517	F = 0.28	0.340	F = 0.00	0.161	F = 4.06	0.485	F = 4.50
	Hand	Right	0.340	p = 0.853	0.631	p = 0.135	0.410	p = 0.374	0.280	p = 0.248	0.615	p = 0.253
		Left	0.320	F = 0.03	0.431	F = 2.49	0.273	F = 0.83	0.127	F = 1.44	0.465	F = 1.41
Execution phase
	Object	Tool	0.271	p = 0.133	0.318	p = 0.025*	0.014	p = 0.534	0.151	p = 0.354	0.211	p = 0.232
		Bar	0.213	F = 2.52	0.233	F = 6.17	−0.032	F = 0.40	0.102	F = 0.91	0.263	F = 1.55
	Task	Use	0.402	p = 0.008*	0.378	p = 0.001*	0.112	p = 0.011*	0.271	p = 0.002*	0.268	p = 0.021*
		Transport	0.082	F = 9.42	0.173	F = 16.23	−0.129	F = 8.46	−0.018	F = 13.21	0.105	F = 16.63
	Hand	Right	0.306	p = 0.257	0.195	p = 0.432	−0.342	p = 0.001*	−0.051	p = 0.036*	0.560	p = 0.001*
		Left	0.178	F = 1.38	0.356	F = 0.65	0.325	F = 16.50	0.305	F = 5.32	−0.186	F = 52.85

^aMean group laterality indices for levels of all factors and the p values and F values (df = 16) of the main effect of each factor.

*Significant main effect at a threshold of p < 0.05.