[Lateralization of the Frontal Association Cortex: Syntax-related Networks].

The left inferior frontal gyrus, a part of the left frontal association cortex, is known to be involved in syntactic processing. Recently, we identified three syntax-related networks, which included each of the three regions of the left frontal association cortex. Moreover, patients with agrammatic comprehension caused by damage to the left association cortex showed changes in functional connectivity in the entire syntax-related network. These findings suggest that the left frontal association cortex is at the core of syntax-related networks.