PSYC 3300 Lecture Notes - Lecture 7: Anatomical Terms Of Location, Reward System, Homeostasis
Document Summary
Located just about the spinal cord: controls vital reflexes via the cranial nerve nuclei, breathing, heart rate, vomiting. Sneezing: axons from each hemisphere cross over (decussate) to the contralateral side of the spinal cord. Left hemisphere controls the right side of the body: the right hemisphere controls the left, the pons. Substantia nigra: layer of pigmented cells that produce dopamine. Involved in movement, timing and reward seeking: death of cells in this area leads to parkinson"s disease, the ventral tegmental area, coordinates the reward system (dopamine, origin of two major da pathways, mesolimbic, mesocortical. Feelings of pleasure if basic needs are met: addiction, the tectum, the roof of the midbrain, contains the: Superior colliculus: visual pathway, orients/guides eye movements. Locating/orienting towards sounds: the forebrain, consists of the diencephalon, thalamus. Located just superior to the brainstem (just above the tectum/tegmentum: pair of structures (right and left, most sensory information is transmitted to nuclei within the.
