Miscellaneous
Vocabulary
Attention
Sleep Stages
Drug Categories
Sleep Scans
and Disruption
100

Our 24-hour "biological clock"

Circadian rhythm

100

A calming process that is meant to ground you and heighten your awareness.

Meditation

100

In this stage of sleep, you experience vivid dreams and your deepest sleep. 

REM

100

A substance that increases your alertness or attention, like caffeine or Adderall. 

A stimulant

100

What is a common scan to include in a sleep study, since it measures brain waves?

An EEG

200

By occupying the receptor site, these prevent neurotransmitters, hormones, or other drugs from attaching and producing an effect.

Antagonists

200

A common perceptual phenomenon where a person fails to notice a major change in their visual environment.

Change blindness

200

In which sleep stage are abnormal events like bedwetting more likely to occur?

Stage three

200

A substance that alters your perception and can cause you to perceive things that aren't real. 

Hallucinogens

200

A term to describe general difficulty sleeping or staying asleep. 

Insomnia

300

This happens when avoiding reality replaces active problem-solving

Escapism

300

This term refers to when your consciousness is impacted by things like sleep, injuries, or substances. 

Altered state

300

In what stage of sleep does your pulse slow, and you "nod off"

Stage one

300

This substance does not neatly fit into a traditional drug category, since it has depressant, stimulant, and mild hallucinogenic effects. 

Cannabis

300

When you drift into REM at various times throughout the day, it is indicative of this disorder.

Narcolepsy

400

This type of substance activates a cellular receptor to produce the maximum possible biological response. An example is morphine, which attaches to an opioid receptor. 

An agonist

400

This happens when your senses process information below the level of your conscious awareness

Subliminal perception

400

What does REM stand for?

Rapid eye movement

400

A category that includes alcohol and benzodiazepines, these suppress central nervous system activities.

Depressants

400

A sleep disorder characterized by a disruption in breathing. 

Sleep apnea

500

This theory suggests that dreams are the brain's attempt to make sense of random neural activity

Activation-synthesis theory

500

A cognitive activity that happens without conscious control, intent, or effort, requiring very few attentional resources

Automatic processing

500

How long is a typical full sleep cycle?

90 minutes

500

Substances that suppress your feeling of pain, like ibuprofen or morphine. 

Analgesics

500

These types of disorder happen when your internal 24-hour biological clock falls out of sync with your external environment.

Circadian rhythm sleep disorder