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Table 4 Descriptive statistics of the LI values for each contrast (Overt and Covert contrasts), and for each resting− state network (LANG, CO, and VAN), with the different used masks

From: Overt speech critically changes lateralization index and did not allow determination of hemispheric dominance for language: an fMRI study

Mask Number of values Minimum Maximum Range Mean Standard deviation
Covert
 Whole brain 33 − 0.65 0.76 1.41 0.2163 0.3208
 Sus-tentorial 33 − 0.84 0.86 1.7 0.3292 0.3793
 Frontal 33 − 0.79 0.88 1.67 0.4248 0.3645
 Frontal,
preCG excluded
33 − 0.76 0.84 1.6 0.4579 0.3374
 Parietal 33 − 0.8 0.94 1.74 0.3688 0.4085
 Parietal,
postCG excluded
33 − 0.85 0.94 1.79 0.3243 0.443
Overt
 Whole brain 33 − 0.63 0.44 1.07 − 0.1855 0.275
 Sus-tentorial 33 − 0.67 0.62 1.29 − 0.136 0.3043
 Frontal 33 − 0.5 0.73 1.23 − 0.05997 0.3346
 Frontal,
preCG excluded
33 − 0.38 0.61 0.99 0.03855 0.288
 Parietal 33 − 0.59 0.75 1.34 -0.02548 0.364
 Parietal,
postCG excluded
33 − 0.73 0.68 1.41 -0.1892 0.3413
LANG
 Whole brain 32 − 0.74 0.85 1.59 0.5931 0.3221
 Sus-tentorial 32 − 0.77 0.91 1.68 0.6572 0.3402
CO
 Whole brain 32 − 0.69 0.69 1.38 − 0.1179 0.3718
 Sus-tentorial 32 − 0.7 0.52 1.22 − 0.1564 0.3575
VAN
 Whole brain 33 − 0.86 0.41 1.27 − 0.4808 0.3925
 Sus-tentorial 33 − 0.88 0.4 1.28 − 0.4991 0.403
  1. CO cingulo−opercular network, LANG language network, postCG postcentral gyrus, preCG precentral gyrus, VAN ventral attention network