Unit 3 Test-Consciousness

The human sleep cycle repeats itself about every

90 minutes

The hypnagogic sensations of falling or floating are most likely to occur during which sleep stage?

NREM-1 sleep

What do methamphetamine, caffeine, and cocaine have in common?

They excite neural activity and arouse body functions.

Although repeated use of amphetamines has caused Aaron legal problems, which threaten his job, he continues to use the drugs. Aaron most clearly shows signs of

addiction

When cocaine is snorted, free-based, or injected, it produces a rush of euphoria by

blocking the reuptake of dopamine.

After flying from California to New York, Arthur experienced a restless, sleepless night. His problem was most likely caused by a disruption of his normal

circadian rhythm

The large, slow brain waves associated with deep sleep are called

delta waves

Drugs such as alcohol and opiates that calm neural activity and slow body functions are called

depressants

Sleep deprivation has been shown to

diminish immunity to disease

LSD is most likely to produce

hallucinations.

Morphine and heroin are

opiates

Consciousness is

our awareness of ourselves and our environment.

Chemical substances that alter perceptions and moods are called ________ drugs.

psychoactive

The need to take larger and larger doses of a drug in order to experience its effects is an indication of

tolerance

After Carlos had been asleep for about an hour and a half, his heart began to beat faster, his breathing became fast and irregular, and his closed eyes began to dart back and forth. Carlos was most likely experiencing

REM sleep.

Circadian rhythm refers to

a pattern of biological functioning that occurs on a roughly 24-hour cycle.