My MRI Guide Anatomy of the Brain Revision Fornix: It is a white matter bundle that is located in the medial aspect of the cerebral hemisphere. Its’ role is to connect various nodes of the limbic circulation and plays an important tole in cognition and memory recall. Limbic system: Processes and regulates emotion and memory. Deals with learning. Deals with sexual stimulation. Also has a role in behaviour, motivation, long term memory and some role in regulating the sense of smell. Thalamus A relay station of all sensory information expect smell to the cerebral cortex for interpretation. Mamillary bodies Involved in memory recollection. Damage to then can cause spatial memory deficiency. Superior olivary nucleus Inferior olivary nucleus Superior colliculus Processing of visual information Connected to the lateral geniculate body via the superior brachium. The role of the lateral genicul ate is a small structure in the thalamus that connects with the optic nerve. It receives information from the optic tract via the ascending retinal ganglion cells and then transmits that to the primary visual cortex. Inferior colliculus Processing of auditory information Connected to the medial geniculate body via the inferior brachium. The medial geniculate nucleus relays information from the inferior colliculus to the cerebral cortex. Corpus callosum Allows transmission of information from one side of the brain to the other.