CONSCIOUSNESS
CONSCIOUSNESS
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SLEEP RHYTHMS
1. REM - rapid eye movements a. Associated with dreaming 2. Stages of brain waves a. Alpha Waves - regular, high-amplitude, low frequency wave b. Stage 1 - small irregular brain waves, light sleep c. Stage 2 - bursts of sleep spindles d. Stage 3 - delta waves; deep sleep e. Stage 4 - extremely deep sleep f. Entire cycle is 30-45 minutes and then reverses • WAKEFULNESS 1. Conscious process 2. Subconscious process - can be thought into conscious when necessary 3. Nonconscious processes - remain outside awareness but influence behavior • ALTERED STATES 1. Meditation - eliminating distracting thoughts 2. Psychoactive drugs - influence perception, thinking or behavior a. Stimulants - speed up nervous system activity - cocaine, amphetamines b. Depressants slow central nervous system activity - alcohol, tranquilizers c. Opiates - relieve pain and produce euphoria - opium, morphine, heroin d. Psychedelic drugs - alter consciousness - LSD, mescaline 3. Hypnosis - heightened state of suggestibility when subjects can sometimes control unconscious body functions |
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