comparative neuroanatomy

The evolutionary emergence of our human ability to quickly infer upon conceptual relationships likely relies on the relative re-organization of large-scale connections in the human brain compared to those in other primates since our last common ancestor. Recent evidence highlights two candidate pathways, the arcuate bundle and the extreme capsule, but their role in the evolution of human cognition, and specifically language, remains highly disputed. I will map these networks using comparative neuroimaging methods in macaque monkeys, chimpanzee apes, and humans, quantifying potential shifts in connectivity.