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Chapter5
| Term | Definition |
|---|---|
| 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
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