what are major classification for drugs we talked about in class? how do they affect the brain?
depressants- depress neural activity (CNS) and slow body functions,reduce anxiety, impair memory and judgment (barbituates and sedatives), opiates-- lessen pain and anxiety
stimulants-excite neural activity and speed up body functions, increase heart and breathing rate, provide energy (nicotine and caffeine), cocaine-- euphoric affect, ecstasy-- release stored serotonin and block absorption, release dopamine
hallucinogens- distort perception and envoke sensory images (LSD), THC--amplify emotional state, slow reaction time, impair memory and motivation