Figure 1.
Brain activity and the arcuate fasciculus.
Averaged brain activity during word generation task (A) and reconstruction of the arcuate fasciculus on the B) 1% threshold and C) 2% threshold, respectively. Colour bars represent the number of subjects showing arcuate fasciculus fibers in that voxel.
Table 1.
Concordance for handedness and language dominance in male and female twin pairs.
Figure 2.
Asymmetry indices (AI) for the FA values of the arcuate fasciculus according to handedness and gender are depicted. Male twin pairs with discordant handedness showed significantly lower AIFA than right-handed male twin pairs whereas the same effect was not observed for the female twin pairs.
Figure 3.
Asymmetry indices (AI) for the FA values of the arcuate fasciculus according to cerebral language dominance are shown. Twin pairs with discordant language dominance showed reversed AIFA asymmetry.