TABLE 1.

Activity clusters in the right hemisphere.

	Human eye-contact > rest
Anatomical name	Peak T-Score	p-value	X	Y	Z	Voxel #
R superior temporal gyrus (STG)	4.27	<0.001	70	−42	10	697
R occipital visual area II	3.97	<0.001	22	−98	8	275
R occipital visual area III	3.79	<0.001	0	−98	28	119
R dorsolateral prefrontal cortex (dlPFC)	2.84	0.007	28	56	28	46

	Robot eye-contact > rest
Anatomical name	Peak T-Score	p-value	X	Y	Z	Voxel #
R occipital visual area II	3.02	0.005	12	−96	6	28
R occipital visual area II	4.53	<0.001	30	−96	6	778
R occipital visual area III	3.00	0.005	50	−68	−4	35
R premotor cortex	3.58	0.002	58	8	40	46

	Human eye-contact > robot eye-contact
Anatomical name	Peak T-Score	p-value	X	Y	Z	Voxels #
R supramarginal gyrus (SMG)	2.80	0.007	68	−38	32	68
R dorsolateral prefrontal cortex (dlPFC)	3.96	<0.001	20	58	34	227
R supplementary motor area (SMA)	3.95	<0.001	20	−4	74	160

Statistics of hemodynamic results. The table shows statistics for positive clusters of significant fNIRS hemodynamic activity in the right hemisphere for three contrasts: human eye-contact > baseline (top); robot eye-contact > baseline (middle); and human eye-contact > robot eye-contact (bottom). (Column 1) the name of the cortical feature where the cluster is located. (Column 2) the maximum T statistic found within the cluster. (Column 3) the significance p-value, shown uncorrected. (Column 4–6) three dimensional coordinates in X, Y, and Z dimensions, given in Montreal Neurological Institute (MNI) space. X indicates right-left; Y indicates front-back; Z indicates up-down. (Column 7) the number of voxels in that cluster that reach significance. The superior temporal gyrus and supramarginal gyrus are the anatomical features of the temporoparietal junction (rTPJ). Analyses utilized a cluster size threshold of 20.