PSYB65H3 Lecture Notes - Cerebral Cortex, Reticular Formation, Hindbrain
Document Summary
Nervous system broken up into cns and pns. Pns => all the other nerves going out from the brain and the spinal cord. This course focuses on the brain in the cns only. In certain aspects the human brain is identical to other mammals, eg rats, mice in terms of overall organization. Broken down into forebrain, midbrain and hindbrain: hindbrain/brainstem => continuation of the spinal cord, base of the brain; fairly simple. Cerebellum: involved in sensorimotor integration integrates sensory input w motor output; allows for balance, ability to maneuver, prevents falling, damaged cerebellum ppl stagger (look drunk) => ability to stand erect on 2 limbs. Medulla: basic life processes heart rate, respiration; critical for life: midbrain => contains reticular formation number of different nuclei. => involved in sleep/wake cycles, waking up and going to sleep. => damage leads to continuous sleep => coma: forebrain => most anterior portion, contains most of the brain mass in humans.
