Catalyst 5/12/14

Write down and answer the following question on your Catalyst sheet:

What is the main difference between barbiturates and benzodiazepines?

Caffeine5/12/14

How much do you know about caffeine?TRUE OR FALSE:

1. Caffeine isn’t addictive

2. Caffeine is not as dangerous as other drugs

3. Caffeine is the most widely consumed psychoactive drug in the world

4. A can of Coke has more caffeine than a cup of coffee

5. Caffeine makes you pee more

Answers1. False

2. True

3. True

4. False

5. True

CaffeineStimulant

Temporarily increases physical and mental functions

Legal & found in a wide variety of products Soft drinks Coffee Tea Chocolate

Most popular drug on the planet! 120,000 tons consumed per year

Sources of CaffeineCoffee beans

Kola nuts (cola)

Cocoa beans (chocolate)

Guarana (energy drinks)

Effects of Caffeine Increased alertness

Increased focus

Improved physical performance

Increased urinary output (you pee more)

Anxiety (“the jitters”)

Caffeinism = caffeine addiction Nervousness, irritability, restlessness, headaches

How Caffeine WorksThere is a chemical called adenosine that is

made naturally in the body

Adenosine suppresses brain & nerve activity and blocks release of certain neurotransmitters

Caffeine works by blocking adenosine action

When caffeine blocks adenosine, there is more release of neurotransmitters, leading to stimulating effects

Mini-Lab: Caffeine & MemoryWe just talked about how caffeine improves

brain activity and focus…

Does it also improve memory?

Mini-Lab: Caffeine & MemoryThe class will be split into two groups: Group A

and Group B

Both groups will perform Memory Test 1 at the same time Remember and write down as many numbers as

you can after looking at the numbers for 30 seconds

One group will drink soda that is caffeinated, the other group will drink soda without caffeine

Both groups will perform Memory Test 2 at the same time

Caffeine Video

Post-Lab Reflection QuestionsWhy was the name of the soda hidden from

you during the experiment?

Was there a placebo effect? How do you know? Placebo effect = effect that is observed even

without the actual drug

What would you do differently next time for better results?

10.6 Cocaine5/12/14

CocaineStimulant

Temporarily increases physical and mental functions

Increases alertness, feelings of well-being, energy, and activity

Increases anxiety, paranoia, and restlessness

Comes from the coca plant

History of CocaineSouth American indigenous peoples have

chewed coca leaves for over a thousand years

Late 1800s - Used as a painkiller medicine

1980s - Crack cocaine sold by drug dealers and became popular in Los Angeles, leading to the crack epidemic Crack cocaine is a cheaper, smokeable

form of cocaine

Coca-Cola ad(1902)

Drugs, Inc.: CocaineFollow along with the documentary and answer

the questions in your notes

Achieve3000 Time!Go to www.achieve3000.com on your iPads

Go to Mailbox, then click on “5/12/14 Assignment: Mind-Bending Technology”

Do the following: Before Reading Poll Article Activity After Reading Poll