PSYC 401 Lecture Notes - Lecture 13: Olfactory Bulb, Epithalamium, Commissure
Document Summary
Major commissure connecting the left and right hemispheres bundle of neural fibers that let two hemispheres. Not fully developed until around 10 years of age. Behavior of young children can sometimes resemble that of. Persons born without a corpus callosum are not like split- split-brain patients brain patients: compensation during development, other commissures become larger, people born without a corpus callosum can perform many tasks that split-brain patients fail. Anterior commissure: precommissure , white matter tract connecting the two temporal lobes of the cerebral hemispheres across the midline connects olfactory bulb and parts of the cerebrum to same areas on the opposite side. Posterior commissure: epithalamic commissure , rounded band of white fibers crossing the middle line on the dorsal aspect of the rostral end of the cerebral aqueduct. Hippocampal commissure: commissure of the fornix , second largest of the commissural connecting bundles, directly underneath midline, adjoins corpus callosum, body of the fornix .
