Arcuate Fasciculus
Arcuate fasciculus is a bundle of nerves that is believed to connect the posterior part of the temporal-parietal junction with the frontal lobe in the brain, which roughly translates into connecting Wernicke's area with Broca's area, thus becoming an important association area.
New research demonstrates that the arcuate fasciculus instead connects posterior receptive areas with motor areas, and not to Broca's area in particular. Since some branches of the arcuate fasciculus extend further into the parietal lobe, it is believed that it has an important role in attention.
Read more about this topic: Language Processing