PSYA01H3 Chapter Notes - Chapter 3: Cortisol, Sympathetic Nervous System, Parasympathetic Nervous System
Document Summary
Serotonin - a monoamine involved in regulating mood, sleep, aggression, and appetite, formed in brain stem and projects throughout brain and spinal cord: many antidepressant medications block reuptake of serotonin. For instance, individual- duals prone to migraine headaches are also more likely to have lower levels of serotonin in brain: altered levels of serotonin have been found in patients with chronic pain conditions such as. Substance p- neurotransmitter involved in experience of pain. Found in dorsal root of spinal cord, area that transmits pain information back to the brain. Substance p receptors densely packed in a structure in the middle of brain called periaqueductal grey. Congenital insensitivity - individuals lack ability to perceive pain, Indirect agonist - facilitates effects of a neurotransmitter, does not physically bind to the same part of the receptor as neurotransmitter: ex. a drug that blocks the process of reuptake would be an indirect agonist (ssri)
