Figure 5.

The relationship between laterality in posterior regions and behavioural measures in the early left injury group. (A) Balanced activity in both hemispheres is related to better overall language functioning compared to a predominant recruitment of either left or right hemisphere regions. (B) Similarly, balanced activity in both hemispheres is related to increased category generation ability. No significant relationship was found between laterality and behaviour in siblings. LI ranges from −1.0 (predominantly right lateralized) to +1.0 (predominantly left lateralized).