Stages of Sleep
Consciousness
Characteristics of Sleep & Theories of Sleep
Sleep Disorders
Surprise Category
100
Body temperature drops, heart rate slows, and breathing becomes more shallow and irregular
What is N2 (Sleep Spindles)?
100
A person's awareness of everything that is going on around him or her at any given time.
What is consciousness?
100
According to this theory, sleep is a product of evolution
What is the adaptive theory of sleep?
100
Bad dreams take place during REM sleep and as we age we have fewer of them
What are nightmares?
100
A person stops breathing for 10+ seconds, snores, and makes gasping sounds
What is sleep apnea
200
In this stage the body restores the mind and consolidates information. Neural connections are formed to strengthens memory.
What is REM Sleep?
200
State in which there is a shift in the quality or or pattern of mental activity as compared to waking consciousness.
What is an altered state of consciousness?
200
This theory says that sleep is necessary to the physical health of the body
What is the restorative theory?
200
Slipping suddenly into REM sleep, occurs without warning
What is Narcolepsy?
200
The _______ controls the sleep-wake cycle within the brain.
What is the hypothalamus?
300
In this stage the body is at its lowest level of function, growth hormones are released from the pituitary gland
What is N3?
300
Processing that is conscious (you are aware of your though process and are focusing fully on the task at hand).
What is explicit processing?
300
The cycle of bodily rythm that occurs over a 24-hour period
What is the circadian rhythm?
300
The inability to sleep, stay asleep, or get good quality of sleep
What is insomnia?
300
A loss of sleep
What is sleep deprivation?
400
In this stage if awakened you may not believe you were even asleep
What is N1 (light sleep)?
400
Processing that happens without conscious awareness (you perform an action before you even become aware of it)
What is implicit processing?
400
This age group needs about 7-9 hours of sleep to function well.
What are young adults?
400
20% of Americans affected by this, most people do not recall activities when this happens
What is sleepwalking?
400
The type of brain waves that are the slowest and longest, indicating deepest level of sleep
What are delta waves?
500
In this stage 90% of dreams take place
What is REM?
500
People's thoughts, feelings, and sensations are clear and organized, and they feel alert
What is waking consciousness?
500
The natural cycles of activity that the body must go through.
What are biological rhythms?
500
A state of panic when in deep non-REM sleep
What are night terrors?
500
The type of brain waves that indicate a state of relaxation
What are alpha waves?