Psych 321 Chapter 8

How does caffeine affect eye-hand coordination?

Decreases

Withdrawal from caffeine lasts about __________.

1 week

Peak levels of caffeine after taking a dose occur in __________.

15 to 45 minutes

What proportion of 12-year-old children regularly consume energy drinks?

25 percent

Symptoms of caffeinism have been shown to appear after _____ mg of caffeine has been consumed.

250

The half-life of caffeine in the blood ranges from ____________.

3 to 7 hours

The lethal dose of caffeine for adults is equivalent to __________ cups of coffee.

75

Estimates are that __________ of the world's population regularly consumes products containing caffeine.

90%

The effects of caffeine are caused by its blockage of receptors for which neurotransmitter?

Adenosine

The explanation for caffeine's acute effects that is most accepted now is the __________ hypothesis.

Adenosine

Cocoa is primarily produced in __________.

Africa

Physical dependence to caffeine can develop __________.

After 3 consecutive days of regular use

Caffeine-producing plants are indigenous to __________.

All of these (China, West Africa, North America, South America)

Individuals who suffer from ___________ should be careful when using caffeine.

Anxiety

The diuretic effects of caffeine have led to its use in what type of medication?

Appetite suppressants

Which of the following contains the highest concentration of caffeine?

Brewed coffee

What type of caffeine did 16th century European explorers discover in Mexico?

Cacao

A medication intended to increase respiratory stimulation in premature infants would be most likely to include __________.

Caffeine

Which of the following is notable for being a "cradle to grave" drug?

Caffeine

Which of the following is used most frequently in medications?

Caffeine

What were the results of Lowe's 1988 study on the effects of the combination of alcohol and caffeine on state-dependent learning?

Caffeine was mostly responsible for the state-dependence effect

Caffeine has been used in a variety of medications to produce __________.

Cerebral stimulation and diuresis only

Which of the following does not slow the process of caffeine metabolism and excretion?

Cigarette smoking

In the United States, caffeine is most often consumed in the form of __________.

Coffee

According to the study conducted by Marks & Kelly, which of the following is most likely to still be at close to peak level 2 hours after consumption?

Cola

___________ has the highest per capita consumption of cocoa.

Denmark

How does caffeine affect the rapidity and accuracy of motor skills?

Depends on the dosage

Research has associated chronic caffeine use with __________.

Elevated serum cholesterol level

The most commonly reported symptom of withdrawal from caffeine is __________.

Headaches

Which of the following countries prefers to take its caffeine in tea?

Ireland

How does caffeine affect human task performance?

It increases performance in some areas and decreases it in others

The __________ does most of the metabolizing of caffeine.

Liver

A recent study indicates that an ingredient in coffee appears to protect against ___________.

Liver cirrhosis

Which of the following would a person not be likely to feel after drinking a couple cups of coffee?

Mellow

Caffeine is primarily excreted from the body as __________.

Metabolites

Caffeine is one of three naturally occurring compounds known as the __________.

Methlyxanthines

What is the Federal Drug Administration's position on the use of caffeine by pregnant women?

Moderate doses of caffeine do not have negative effects on reproduction

The United States' consumption of caffeine is __________ the world average.

More than twice

Which popular soft drink contains the highest concentration of caffeine?

Mountain Dew

Which substance is contained in an alkaloid such as caffeine?

Nitrogen

Recent research has indicated that frequent coffee drinkers have a greater risk of dying from ______.

None of these are correct (Heart disease, stroke, infections)

After consumption, the concentration of caffeine is __________.

Similar throughout the body

Caffeine's primary action is __________.

Stimulation of CNS activity

Residents of __________ are the world's top coffee consumers.

The Netherlands

Europeans first began using caffeine in __________.

The late 15th and early 16th centuries

Which of the following correctly lists the methylxanthines in order from least to most active as a CNS stimulant?

Theobromine, theophylline, caffeine

Tea contains ________ as well as caffeine.

Theophylline

A person who is sensitive to the effects of caffeine would be advised to take which of the following medications for a sinus headache?

Tylenol

Coffee consumption may help prevent __________.

all of the above (liver disease, type 2 diabetes mellitus, parkinson's disease)