PSYC414 Chapter Notes - Chapter 12: Mesolimbic Pathway, Opioid Receptor, Neuron Doctrine
3 Apr 2018
School
Department
Course
Professor
Document Summary
Biological and chemical changes in brain following abuse. Environment plays a role in development, as well as genes. Initially drug use may be voluntarily, but addiction is after repeated use. Engaging is a choice made by the individual. This re(cid:373)o(cid:448)es stig(cid:373)a, attri(cid:271)uti(cid:374)g a(cid:271)use to the disease rather tha(cid:374) o(cid:374)e"s o(cid:449)(cid:374) (cid:271)eha(cid:448)ior. Behavior arises from communication between nerve cells (neuron doctrine) Understanding the nervous system helps us explain behavior. Patterns of gene expression and protein synthesis in cerebrum and limbic system temperament and personality. Manage d/os with psychotropic medications, changing communication. Focus on what changes in the nervous system to explain changed behavior. Example of things that change ns: smoking methamphetamine increase of da motivation to use again, alcohol & benzodiazepines (valium) activity of gaba (stress and anxiety, heroin mu opiate receptor changes. Da signaling in mesolimbic pathway may explain the shift from liking to needing the drug because of craving.
