Psych Test #2

condition where the body has biologically adapted to the presence of the drug, so the drug must be taken regularly to avoid withdrawal symptoms

a loss of control over use of the substance

Unpleasant physical reactions combined with intense drug cravings

• withdrawal symptoms which are opposite of the drug's usual action
• ex: cocaine withdrawal produces sluggishness

• depress brain activity & produce sedation
• target the brain stem

when combined, intensity grows exponentially

• alcohol
• barbiturates (tranquilizers, downers)
• tranquilizers (minor tranquilizers)

medulla

natural endorphin receptor sites, pain

cerebral cortex

limbic system (mostly hypothalamus)

volatile hydrocarbons