Chapter 2, 10 - Sleep, Dreams, and Emotions Flashcards
rapid eye movement (REM) sleep
- stage of sleep that is characterized by rapid eye movement and brain wave patterns that resemble those for an awake state and in which most dreaming occurs
paradoxical sleep
- what REM sleep is sometimes referred to as, because the bodily muscles are immobilized but much of the brain is highly active
stages of sleep
- there are 4 stages of sleep
1 - beta: beginning to fall asleep
2 - alpha: light sleep, sleep spindles (burst of activity)
3 - theta: transitional sleep period, delta waves (less than 50% is delta activity)
4 - delta: deepest sleep
REM sleep: when dreaming occurs, active breain
sleep debt
- suppresses immune system, impairs concentration, general feelings of weakness/discomfort, hallucinations
- when we finally sleep: repay the debt, REM rebound
activation synthesis theory
- dreams are a byproduct of physiological processes
- images are random, but the brain tries to make sense of them (why dreams are usually strange)
manifest content
- Freud’s term
- literal surface meaning of dreams
Latent content
- Freud’s term
- underlying true meaning of the tream
Three components of emotion
1 - physical component: [state of physiological arousal]
2 - behavioral component: [outward expression (facial gestures)]
3 - cognitive component: [appraisal of the situation to determine emotion (and intensity)]
James-Lange Theory
- physiological arousal occurs first
Cannon-Bard Theory
physiological arousal and the emotion occur simultaneously
Schachter-Singer two-factor theory
- emotion is determined by cognitive appraisal of the physiological arousal and the entire environmental situation
Ekman’s six basic emotions
1 - happy 2 - anger 3 - sad 4 - disgusted 5 - fear 6 - surprised
The facial feedback hypothesis
- James-Lange
- if we smile, we are likely to feel happy, and if we frown, we are likely to feel sad
hypnagogic sleep
sensation of falling