The inability to sleep

• insomnia

• sleep apnea

• sleep walking

• REM sleep

Breathing interruption that occurs during sleep

• insomnia

• REM sleep

• sleep apnea

• NREM sleep

The sequence of bodily changes that occurs in humans every 24 hours

• narcolepsy

• circadian rhythms

• REM sleep

• insomnia

A rare sleep disorder in which people may suddenly fall asleep.

• narcolepsy

• REM sleep

• insomnia

• sleep apnea

Stage of sleep in which breathing becomes more irregular, blood pressure rises, and the heart beats faster.

• NREM sleep

• REM sleep

• circadian rhythms

• light sleep

______________ is the awareness of things inside and outside of ourselves.

• consciousness

• insomnia

• REM sleep

• NREM sleep

The level at which many biological functions occur, such as breathing.

• conscious

• preconscious

• nonconscious

• none of the above

___________________ is the ability to ignore distractions, such as background noise, to focus on a particular stimulus.

• Nonconscious

• Selective attention

• Consciousness

• none of the above

A state of consciousness in which a person's sense of self or sense of the world changes

• preconscious

• nonconscious

• altered state of consciousness

• NREM

Consciousness is considered a psychological ____________ because it can neither seen or measured.

• model

• construct

• theory

• principle