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EEG monitors electrical activity of the brain
EMG records muscular activity and tension
EOG records eye movements
EKG records heart contractions
Biological rhythms periodic fluctuations in physiological functioning
Circadian rhythms 24 hour biological rhythms in humans and other species
Stage 1 of sleep theta waves prominent
Stage 2 of sleep brief bursts of high frequency of sleep spindles and K complexes
Stage 3&4 of sleep Slow wave sleep- Low frequency delta waves are prominent
REM deep sleep stage with rapid eye movements, high frequency brain waves, and frequent dreaming
Restorative theories propose that sleep lets the body(brain) to recover and rest- supported by sleep deprivation findings
Circadian theories propose that sleep evolved to limit exposure to predators- supported by comparative animal findings
Facilitation of learning(FOL) theories proposes that sleep strengthens neural connections that promote learning- supported by learning and memory findings
A Dream a mental experience during sleep that includes vivid imagery/sensation, emotion
Wish-Fulfillment Theory the theory saying we dream because we want to fulfill what we cant usually
Activation-Synthesis Theory the modern theory saying we dream because of random neural firing and the brain tries to make sense of the firing
Evolved Threat- Rehearsal Theory the theory that we dream because it is a way to practice survival skills
Psychoactive drugs chemical substances that modify mental, emotional, or behavioral functioning by altering neurotransmitter functioning
Narcotics or Opiates pain relief, cough suppression constipation calm relaxation highest physical dependence highest psychological dependence
Sedatives barbiturate- surgical anesthesia, used to kill people, high physical and psychological dependence. Benzodiazepines- used to get rid of memory after surgery, date rape drug
Cannabis increase hunger, chronic pain, glaucoma, has own set of Neurotransmitters low physical high psychological.
Stimulants ADHD neuro- dopamine moderate physical dependence high psychological, hyper stimulate heart insomnia
Created by: larissa174