Table 2.

Location of activated clusters found in contrasts between Oldowan toolmaking and control and between Acheulean toolmaking and control by expert tool knappers. (p<0.001 uncorrected, k>5, n=3.Clusters are organized by cortical regions and ordered by decreasing z-coordinate within each region. Blank spaces indicate a lack of significant activation. Coordinates are relative to the Montreal Neurological Institute standard template brain. BA, Brodmann area.)

location		BA	Oldowan-control				Acheulean-control
			x	y	z	t-score	x	y	z	t-score
frontal cortex
right	dorsal precentral gyrus	6					34	−8	58	46.33
left	dorsal precentral gyrus	6					−24	−8	58	17.27
left	lateral precentral gyrus	4/6	−46	−16	44	14.16	−44	−14	46	17.16
left	ventral precentral gyrus	6	−52	6	28	9.72	−52	6	28	12.24
right	ventral precentral gyrus	6					60	2	26	19.68
right	inferior prefrontal gyrus	45					48	34	10	17.08
left	orbital gyrus	11	−24	32	−22	15.1
parietal cortex
left	superior parietal lobule	5	−14	−54	70	14.46	−14	−54	70	12.59
right	superior parietal lobule	7	24	−60	66	11.74	22	−62	68	13.42
right	intraparietal sulcus	7/40	34	−52	60	15.34	34	−52	60	12.32
left	intraparietal sulcus	7/40	−28	−48	52	12.37	−28	−48	52	13.81
left	supramarginal gyrus	40	−48	−32	40	8.67	−48	−32	42	10.40
right	supramarginal gyrus	40	58	−30	36	14.98	58	−30	36	19.57
temporal cortex
right	inferior temporal gyrus	20/21/37	52	−50	−10	30.49
occipital cortex
left	parieto-occipital sulcus	19/7					−22	−62	58	9.62
left	parieto-occipital sulcus	19/7	30	−88	44	12.07
left	superior occipital gyrus	19	−16	−86	38	34.22	−16	−86	38	62.34
right	middle occipital gyrus	19	32	−66	32	10.9
right	middle occipital gyrus	18	22	−88	28	10.54	20	−88	30	9.21
	cuneus	18	4	−86	24	21.59	4	−86	24	19.42
right	calcarine sulcus	17	18	−96	2	28.65	18	−96	2	18.09
left	lingual gyrus	17	−12	−84	−6	24.98	−12	−84	−6	44.93
right	lingual gyrus	19	30	−68	−10	31.65
right	fusiform gyrus	18	30	−76	−16	26.18	30	−76	−16	14.15