PHR 2000 Lecture 2: PHR 2000 Notes #2.docx
3 Dec 2014
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Increase in heart rate and blood pressure. Stereotyped, repetitive, purposeless behavior: ex) go into kitchen to count corn flakes. Psychotic thinking (paranoia: ex) lady at the bus stop is a spy rather than a normal human, sometimes hard to differentiate between actual mental problems and drugs. Cause of death from overdose = cardiovascular issues: strokes, heart attacks, etc. Tolerance- effects get smaller with continued use: some effects lessen. Sensitization- effects grow with continued use: stereotypy, psychotic effects. Both refer to specific effects: applies for stimulants, not opioids. Formication- feeling that bugs are crawling under the skin. Binge pattern of use: take large amounts right as the effects begin to wear off then stop for a bit. Craving/desire for drug persists long after last use: intensifies with increasing time. Designated parts of the brain in response to drug cues. Withdrawal symptoms (generally opposite of stimulant experience: depression, fatigue, lack of self-confidence, anhedonia, physical change in brain activity.
