- Meditation—set of techniques used to focus concentration away from thoughts and
feelings in order to create calmness, tranquility, and inner peace; - Psychoactive drug—a chemical that can pass through the blood/brain barrier to alter
perception, thinking, behavior, and mood.
Four categories of psychoactive drugs:
- Depressants—reduce activity of CNS and induce sleep
- Narcotics—depress the CNS, relieve pain, induce feelings of euphoria
- Stimulants—activate motivational centers; reduce activity in inhibitory centers of
the CNS - Hallucinogens—distort perceptions and evoke sensory images in the absence of
sensory input
- Psychological dependence—person has intense desire to achieve the drugged state in
spite of adverse effects - Physiological dependence (addiction)—blood chemistry changes from taking a drug
necessitate taking the drug again to prevent withdrawal symptoms - Withdrawal symptoms—typically intense craving for drug and effects opposite to those
the drug usually induces.
112 ❯ STEP 4. Review the Knowledge You Need to Score High