Bkbd_drugs

Bkbd_drugs - Drugs and Consciousness What are some purposes...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Drugs and Consciousness What are some purposes for drug use? Medicinal Spiritual/Enlightenment Entertainment
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Thinking critically about drugs Low addictive potential High addictive potential Highly Toxic Non-toxic
Background image of page 2
“No, this really is your brain on drugs.” Dr. Nora Volkow Director NIDA Interview by Terry Gross 7/10/07 Duration: 31 Minutes
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
“No, this really is your brain on drugs.” Q: “Why do some drugs make your feel so good, until they leave you feeling really bad?” A: Dopamine is raised; Initially taking the drug for pleasure; now take it to feel normal Q: “Do different people have different levels of dopamine in their brains and is this why some are more prone to addiction than others? A: Yes and for many reasons: Age--as you age, dopamine system decreases; Genetics Frequency of use; Environmental factors--Chronic stress
Background image of page 4
“No, this really is your brain on drugs.” Q: “What are some of the drugs that act on the dopamine system?” A: All of the drugs humans abuse raise dopamine levels but by differing mechanisms. Some medications do as well and there are three classifications: 1. Opioids--pain medications; e.g., Oxycontin, Vicodin, Morphine; 2. Stimulants: e.g., Ritalin, amphetamine used to treat ADHD, Narcolepsy; 3. Sedative hypnotics: Benzodiazapines and barbituates, common for sleep disorders; Q: “What are the toxic effects of cocaine?” A: Vasorestriction can deprive the brain of oxygen; Increases Calcium in the cells which is toxic
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
“No, this really is your brain on drugs.” Q: “Are these toxic effects reversible?” A: Depends on extent; Very small damage you can recover completely, otherwise permanent damage. Q: “What does it mean that addiction disrupts brain networks?” A: Repeated use changes networks in the brain responsible for judgment and memory, for example. Q: “Knowing what we know about addiction, how should we as a society deal with it?” A: Cultural misguided assumption: Drug addiction is a lifestyle choice
Background image of page 6
“No, this really is your brain on drugs.” A: Addiction is not a choice; You start with experimentation; then only those pre-disposed end up living with the negative, addictive properties. Q: “Is marijuana a gateway drug?” A: Not necessarily, it may be better to consider nicotine as you are more likely to be exposed to it prior to marijuana. Q: “How addictive is Nicotine?” A: As a chemical measure, nicotine is probably with alcohol in that it raises dopamine the least; But it’s a functional drug so that you can marry the drug with everyday activities.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
“No, this really is your brain on drugs.” A: Much more likely to condition the brain with nicotine. Q:
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/22/2010 for the course PGS 101 taught by Professor Blan during the Spring '08 term at ASU.

Page1 / 25

Bkbd_drugs - Drugs and Consciousness What are some purposes...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online