Substance Abuse | Definition, Causes & Diagnosis 7:00 min Dependence on Depressants: Alcohol, Sedative-Hypnotic Drugs and Opioids 6:42 min Stimulant Dependence: Amphetamines and Cocaine 5:56 min Dependence on Hallucinogens: Definition and Examples 5:01 min Understanding Cannabis Dependence: Facts and...
Psychoactive drugs are a class of chemical substances that act on thecentral nervous systemand can alter behavior andcognition. All psychoactive drugs are highly fat-soluble and thus cross the blood-brain barrier readily. Psychoactive drugs altersynaptic transmissionby altering neuro-transmitter amounts ...
These episodes are characterized by feelings of a depressed or sad mood along with a lack of interest in activities. They may also involve feelings ofguilt,fatigue, andirritability. During a depressive period, people with bipolar disorder may lose interest in activities that they previously enjoyed,...
When amphetamines bind to dopamine receptors, a G-protein gets released. This tells us that dopamine receptors are: a. ionotropic b. intracellular c. excitatory d. metabotropic Phenothiazines, a group of drugs used to treat schizophrenia,...
Answer to: Enkephalins and endorphins are examples of A. brain disregulators. B. neural inductors. C. neuropeptides. D. ion channeling agents...
MDMA differs somewhat from traditional amphetamines in that it is not structurally similar to serotonin. Cocaine is rare and cannabis is consumed less frequently than in Western Europe. Heroin is the drug of choice for the poor in Bucharest, Romania's capital of two million people, and alcohol...