PUBH 3004 Lecture Notes - Lecture 8: Substance Abuse, Reward System, Reinforcement
Document Summary
What motivates people: appetite motivations being influenced by gaining something, escape motivations being influenced by relieving something. Addiction: addiction is defined as chronic, relapsing brain disease that is characterized by compulsive and repetitive drug seeking and use, despite harmful consequences. It is considered a brain disease because drugs change the brain they change its structure and how it works. Physical dependence is not the same as addiction. Experimental evidence demonstrates many animals behave in a similar fashion to humans. Addiction is a lot like other diseases, such as heart disease. Both disrupt the normal, healthy functioning of the underlying organ, have serious harmful consequences, and are preventable and treatable, but if left untreated, can last a lifetime. nida (national institute on drug abuse). Addiction reward/pleasure system: with constant stimulation of addicted drug, reward system comes to expect" the stimulus. When drug use stops, reward system is shut down". Trying to find pleasure (ex take more of the drug)
