PSYC 1000 Chapter Notes - Chapter 3: Electromagnetic Pulse, Radio Wave, Nucleus Accumbens

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1000
• Professor: Benjamin Giguere

Document Summary

3. 2 how the neurons system works: cells and neurotransmitters. Myelin reduces the rate of decay of the ap. Multiple sclerosis: myelin sheath is attacked by body. The strength of a stimuli is based on the rate of which the neurons depolarize. Glutamate: most common excitatory one in the brain of vertebrates. Associated with seizure in epilepsy and stroke. Aging and alzheimer"s disease is not enough ach. Mood, control of voluntary movement, rewarding experience. Receptors packed in periaqueductal grey in the brain, which is the area for pain signal input. Receptors also found in amygdala and hypothalamus indicating that pain is not just a physical sensation. Social pain activates the same are as physical pain does. Congenital insensitivity to pain is a condition where patients cannot feel pain. Some of them lack substance p receptors. Agonist: enhance or mimic the neurotransmitter effect. Antagonist: inhibit neurotransmitter activity by blocking receptor or prevent synthesis. Endorphin = endogenous morphine (morphine is a competitive inhibitor)