The brain is specialized by region
Cortical specialization for language:
Wernicke’s area conveys language understanding
Broca’s area enables grammatical speech (and writing)
Arcuate fasciculus connects the two
Key discoveries, made in the late 1800’s:
Cognitive functions are localized within the cerebral cortex
Cortical sites have very specific functions
Left hemisphere cerebral cortex
From Kandel, Schwartz, Jessel, Principles of Neural Science, 3rd edn., 1991