Chapter 4 - Module 12: Sleep and Dreams Flashcards
What is consciousness?
The awareness of the sensations, thoughts, and feelings being experienced at a given moment.
What are the two broad states of consciousness?
- Waking conscious - awake and aware of our thoughts emotions, and perceptions
- Altered state of consciousness - everything else
How do psychologists refer to “falling asleep”?
hypangogic state
What do you call a feeling of falling or muscle jerk while falling asleep?
hypnic jerk
True or false: People may see images in hypnagogic state, and stage 1 of sleep.
True, though this is not to be confused with true dreaming.
Stage 1 of sleep is what?
- transition between wakefulness and sleep
- characterized by relatively rapid, low-voltage brain waves
Stage 2 of sleep is characterized by what?
- slower, more regular wave pattern
- momentary interruptions of spiky waves called sleep spindles
What happens to brain waves in stage 3 of sleep?
- become slower
- appearance of higher peaks and lower valleys
Describe Stage 4 of seep
- deepest stage, least responsive to external stimuli
- wave patterns slower and more regular.
True or false: not everyone dreams in REM sleep.
FALSE.
Everyone does, even if they don’t remember it.
What does REM stand for?
Rapid Eye Movement
What is REM sleep characterized by?
- Paralysis
- increased and irregular heart rate
- increase in blood pressure and breathing rate
- rapid movement of the eyes
What are the 5 stages of sleep?
REM
1-4