Chapter 5 Terms Flashcards
Narcolepsy
A rare sleep problem in which people suddenly fall asleep no matter what time it is or where they are-muscles completely relax + in REM sleep
Circadian Rythm
Biological clocks
Sensory Awareness
Awareness of the environment: conscious or aware of things outside yourself
Consciousness
Awareness of things inside and outside ourselves
Sense of Self
Being aware of ourselves and our existence
Altered State
When a person’s sense of self or sense of the world changes
Examples- sleep, hypnosis, drugs, meditation
Unconscious (Level)
“Subconscious”
Is available to awareness under most circumstances; info is hidden
Selective Awareness
Focusing on a particular stimulus
Stage 1 of sleep
Lightest sleep; theta waves - lasts 30-40 minutes
Stage 2 of sleep
Traditional stage of sleep
Stage 3 of sleep
Deep sleep; delta waves
Stage 4 of sleep
Deepest of sleep; delta waves - most difficulty waking up - lasts 30 minutes and goes to REM sleep
REM sleep
Rapid-eye-movement sleep
- most vivid dreams
- Deprived=learn more slowly + forget more rapidly
NREM sleep
Stages 1,2,3 and 4
Dreams are vaguer + more fleeting
Beta waves
Emitted by the brain when we are awake; short and quick
Alpha waves
When we relax and become drowsy; waves become slower
Theta waves
Slower than alpha and occur during stage 1
Delta waves
The slowest of the four patterns; occurs during stages 3+4
Insomnia
The inability to sleep
(Most common=diff falling asleep)
Increases during times of anxiety/stress
Sleep Apnea
A breathing interruption that occurs during sleep in which people do not automatically start breathing again until they suddenly sit up and gasp for air
Nightmares
Are a result of upsetting events, stress, and depression - occur during REM
Night Terrors
More severe than nightmares; dreamers feel their hearts racing and gasp for air
Sleepwalking
Most common in children- most children outgrow it - caused by an immature nervous system
Biofeedback
A system that provides, or “feeds back” information about something happening in the body