PSYCH 1XX3 Lecture Notes - Lecture 4: Posttraumatic Stress Disorder, Posterior Pituitary, Reticular Formation
Document Summary
All info into and out of the brain travels through cranial nerves or spinal cord which connects to the hindbrain at the base of the skull. Medulla regulate breathing, digestion, and heart rate. Pons role in movement, auditory perception and emotional processing. Reticular formation roles in arousal and motivation, circadian rhythm and posture and balance. Midbrain relatively small region between hindbrain and forebrain rostral to the pons. Superior colliculi eye movement and visual reflexes and reactions to moving stimuli. Some of the nuclei of reticular formation. Red nucleus contributes to motor control partial control over gait, controlling arm swinging during walking and the crawling of babies. Substatia nigra integral role in reward related behaviors, through the release of neurotransmitters dopamine contains high levels of melanin. Degeneration in substatia nigra can lead to parkinson"s disease. Motor problems such as tremors (shakiness) and rigidity (don"t bend) Involved in emotion, memory and perception and thought. Just above the brain stem, under the thalamus.
