Ultra-fast speech comprehension in blind subjects engages primary visual cortex, fusiform gyrus, and pulvinar – a functional magnetic resonance imaging (fMRI) study

Table 2 Coordinates of the whole-head covariance analysis

Anatomical region	Side	Cluster size (voxel)	MNI coordinates			T value
			x	y	z
Cuneus, BA17 / 18	Right	368	15	-102	6	7.61
Cerebellum Crus2	Right		21	-78	-39	6.11
Inferior frontal gyrus, pars triangularis, BA44 / 45	Left	162	-48	18	18	6.15
Fusiform gyrus	Left	159	-42	-51	-21	6.07
Supplementary motor area	Left	112	-6	9	60	5.42
Posterior middle temporal gyrus / superior temporal sulcus	Left	216	-57	-48	6	5.20
Anterior middle temporal gyrus / superior temporal sulcus	Left	54	-51	-12	-15	5.18
Posterior middle temporal gyrus / superior temporal sulcus	Right	49	57	-36	6	4.84
Precentral gyrus	Left	51	-42	0	36	4.60
Pulvinar	Left	35	-18	-30	3	4.69
Pulvinar	Right	23	18	-30	6	5.45

Hemodynamic effects of ultra-fast speech comprehension capabilities as a covariate of the SPM T-contrast (ultra-fast versus baseline). Responses exceeding a threshold of p < .0005 (uncorrected) at a voxel level and a threshold of p< .05 (corrected) at a cluster level, comprising an extent threshold of k = 46 (contiguous voxels), are included – in addition, hemodynamic activation of left- and right-hemispheric pulvinar regions, though non-significant at the level of the corrected threshold of k = 46. Abbreviations: BA, Brodman area; MNI, Montreal Neuroscience Institute template; T, height threshold.

ISSN: 1471-2202