Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Polysubstance dependence wikipedia , lookup
Drug design wikipedia , lookup
Pharmaceutical industry wikipedia , lookup
Pharmacognosy wikipedia , lookup
Prescription costs wikipedia , lookup
Pharmacokinetics wikipedia , lookup
Blood–brain barrier wikipedia , lookup
Drug interaction wikipedia , lookup
Drug discovery wikipedia , lookup
Psychopharmacology wikipedia , lookup
Set CornellFunction Notes on pg. 29.5upBrain and Chemistry 39 Brain Function and Chemistry 2.129.5 Atoms, Ions, and Molecules •Topic: 29.5 Brain Function and Chemistry •Essential Question(s): 1. In a paragraph, summarize how your chosen drug effect the nervous system. KEY CONCEPT Scientists study the functions and chemistry of the brain. 29.5 Brain Function and Chemistry Taped on Pg. 38 Clinical Application 10.4 1. What do opiates do to the body? 2. What are endorphins? 3. Why does the human body make their own opiates? 4. Why do people have withdrawal symptoms when they stop taking a drug? Clinical Application 10.5 1. Cocaine was originally introduced for what purpose? 2. LSD was originally used for what purpose? 3. The effect of a drug depends on what 3 things? 4. What happens with repeated use of an addictive 2substance? 29.5 Brain Function and Chemistry Points to Ponder Neurons (nerve cells) are cells that can store information and send and receive messages. On the top ½ of p. 38 write a paragraph, hypothesizing how drug or alcohol use might affect the nervous system? 29.5 Brain Function and Chemistry KEY CONCEPT Scientists study the functions and chemistry of the brain. 29.5 Brain Function and Chemistry Disclaimer: • We will be spending the next couple of days learning about the effects of certain drugs on the nervous system • We need to approach this topic in a mature manner – You may share family/news stories about abuse of drugs (please no clear identification) – You MAY NOT share any personal stories at any time 29.5 Brain Function and Chemistry New techniques improve our understanding of the brain. • Today, scientists study the brain without surgery. 29.5 Brain Function and Chemistry Changes in brain chemistry can cause illness. • Different neurotransmitters (chemicals) relate to different functions in different areas of the brain.. synapse Normal receptor neurotransmitter When your brain produces the correct amount of these neurotransmitters, homeostasis is maintained – some stimulate impulses, some prevent impulses 29.5 Brain Function and Chemistry • Abnormal levels of neurotransmitter can cause illness. – Schizophrenia: A brain disorder in which people interpret reality abnormally – Depression: A mood disorder causing a persistent feeling of sadness and loss of interest green= low levels of activity Red = are the most active Normal Depressed Schizophrenic 29.5 Brain Function and Chemistry Drugs alter brain chemistry. • Addiction – is the physiological need for a substance. • Tolerance – occurs when more drug is needed to produce an effect. 29.5 Brain Function and Chemistry Drug Addiction • Occurs because of the complex interaction of neurons, drugs, and individual behaviors • Understanding how neurotransmitters fit receptors can help explain the actions of certain drugs • Different drugs have different mechanisms of action • Several questions remain about the biological effects of addiction, such as why some individuals become addicted and others do not 10 29.5 Brain Function and Chemistry • Stimulants cause more action potentials (electrical impulse) – may increase neurotransmitter (chemicals) in synapse – Happy, energetic, alert “uppers” – Increase mental or physical functions cocaine Ex: Speed Cocaine Caffeine Nicotine MDMA ecstasy Methamphetamine neurotransmitter synapse 29.5 Brain Function and Chemistry • Depressants cause fewer action potentials (electrical impulses) – may produce neurotransmitter that prevent impulses – Relaxed, tired “downers” – Decrease mental and physical functions Ex: Alcohol Marijuana Morphine Heroin 29.5 Brain Function and Chemistry Teenagers Against Drugs Campaign Posters and Essay •Bath Salts • Alcohol •Inhalants • Ecstasy (MDMA, Molly, E) •Rohypnol (Roofies) • Heroin •Phencyclidine (PCP) • LSD (Acid) •Marijuana (Weed) • Cocaine (Coke) • Methamphetamine (Meth) • Tomorrow you will gather information about your chosen drug and identify its effects on the nervous system. • Using this information you will create a poster designed to encourage teenagers to AVOID the drug AS WELL AS write an informational essay about the 13 effects of your drug on the nervous system 29.5 Brain Function and Chemistry “Excessive Drinking is Dangerous” 14 29.5 Brain Function and Chemistry 15 29.5 Brain Function and Chemistry Drug Essay DUE: WED FEB 25 Section 1: (7 pts) • Introduce your drug • What was your drug originally used for in the medical field or what was it developed for? • Any background information of the drug and its rise to popularity (facts/statistics/etc..) Section 2: (14 pts) • Explain your drug’s effect on the nervous system specifically! • How does it effect motor skills or connections between neurons? • How does a person “feel” on your drug? What drives them to use? • What are the short term AND long term consequences of using/abusing the drug? Section 3: (7 pts) • What are some “signs” that someone is abusing your drug? • What are some treatment options for a person who wants to become sober • Rehab? • Therapy? • Medicine? • Please tell us about some support groups available for your drug (Ex: Alcoholics Anonymous ) Section 4: (7 pts) • Find a news article regarding a crime committed while someone was using your drug • Explain what happened in your own words, and what the consequences to the person/or other people were • Print out a copy of the article/video, AND attach the web address to the bottom 16of your essay (Some newspapers: LA Times/Chicago Tribune/OC Register/ NY Times/Huffington Post.) 29.5 Brain Function and Chemistry Body Story- The Beast Within (24m30s-49m) Bottom of pg. 39– or if no room separate ½ sheet of paper • Take notes/comments/questions on the brain and neurons’ response to drugs and alcohol https://www.youtube.com/watch?v=fRGDrP0OuRs