Table 3.

Group mean LIs for all conditions and brain lobes and p values of statistical test for significant laterality

Condition	Frontal lobule		Parietal lobule		Temporal lobule		Occipital lobule		Sensorimotor cortex
Condition	LI	p	LI	p	LI	p	LI	p	LI	p
Planning phase
Tool use right	0.253	0.097	0.736	0.000^*	0.533	0.000^*	0.249	0.008^*	0.740	0.000^*
Tool transport right	0.589	0.000^*	0.743	0.000^*	0.454	0.001^*	0.187	0.117	0.801	0.000^*
Bar use right	0.396	0.000^*	0.526	0.001^*	0.282	0.019^*	0.364	0.003^*	0.623	0.000^*
Bar transport right	0.124	0.328	0.519	0.000^*	0.372	0.002^*	0.318	0.013^*	0.295	0.081
Tool use left	0.363	0.003^*	0.574	0.000^*	0.335	0.012^*	0.074	0.549	0.603	0.000^*
Tool transport left	0.436	0.001^*	0.453	0.005^*	0.273	0.065^*	0.037	0.772	0.469	0.006^*
Bar use left	0.179	0.123	0.344	0.001^*	0.223	0.103	0.297	0.005^*	0.413	0.005^*
Bar transport left	0.301	0.009^*	0.355	0.014^*	0.262	0.050^*	0.101	0.481	0.375	0.013^*
Execution phase
Tool use right	0.414	0.000^*	0.288	0.009^*	−0.323	0.004^*	−0.073	0.543	0.543	0.000^*
Tool transport right	0.172	0.181	0.134	0.276	−0.446	0.000^*	−0.140	0.219	0.509	0.000^*
Bar use right	0.511	0.000^*	0.215	0.139	−0.263	0.024^*	0.062	0.631	0.758	0.000^*
Bar transport right	0.129	0.302	0.144	0.090	−0.338	0.003^*	−0.055	0.654	0.430	0.000^*
Tool use left	0.420	0.001^*	0.561	0.000^*	0.573	0.002^*	0.604	0.001^*	−0.064	0.664
Tool transport left	0.078	0.488	0.289	0.116	0.254	0.177	0.214	0.232	−0.144	0.247
Bar use left	0.263	0.032^*	0.447	0.002^*	0.462	0.011^*	0.490	0.001^*	−0.164	0.154
Bar transport left	−0.050	0.632	0.125	0.415	0.011	0.949	−0.090	0.584	−0.374	0.001^*

↵*The mean LI value is significantly different from zero at a threshold of p < 0.05.