psychology-state of consciousness
Terms
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- consciousness
- a person's experience of mental awareness, including current sensations, perceptions, memories, and feelings.
- Altered state of consciousness(ASC)
- a condition of awareness distinctly different in quality or pattern from waking consciousness
- biological rhythm
- any cucle of biological activity, such as sleep and waking cycles or changes in body temperature
- sleep deprivation
- being deprived of desired or needed amounts of sleep
- electroencephalograph(EEG)
- A device designed to detect, amplify, and record electrical activity in the brain.
- sleep stages
- various levels of sleep depth identified by brain-wave patterns and behavioral changes
- hypnic jerk
- a reflex muscle twitch throughout the body that often occurs as one is falling asleep
- light sleep
- stage 1 sleep, marked by small, irregular brain waves and some alpha waves
- deep sleep
- stage 4 sleep; the deepest form of normal sleep
- rapid eye movement(REM) sleep
- swift eye movements during sleep
- non-rapid eye movement(NREM) sleep
- non-rapid eye movement sleep characteristic of stages 2,3,and 4 and largely dream-free
- Insomnia
- difficulty in getting to sleep or staying asleep
- Somnambulism
- one who sleep walks
- sleep talking
- speaking while sleeping
- nightmare
- a upsetting dream
- night terror
- a very frightening NREM sleep episode
- narcolepsy
- a serious sleep disturbance in which the individual suffers uncontrollable sleep attacks
- sleep apnea
- repeated interruption of breathing during sleep
- wish fulfillment
- Freudian belief that the content of many dreams reflects unfulfilled desires that cannot be consciously expressed
- activation-synthesis hypothesis
- theory tht relates dream content to motor commands in the brain, which are made but not carried out during sleep
- meditation
- a mental technique for quieting the mind and body
- drug addiction
- development of physical dependence on a drug such that craving and physical discomfort(withdrawal symptoms)occur in its absence
- withdrawal symptoms
- physical illness and discomfort that accompany the withdrawal of an addictive drug
- drug tolerance
- a reduction in the body's respnse to a drug
- physical dependence
- physical addiction, as indicated by the presence of drug tolerance and withdrawal symptoms.
- psychological dependence
- drug dependence that is based primarily on emotional or psychological needs
- depressant
- a substance that decreases activity in the body and nervious system`
- stimulant
- a substance that produces a temporary increase of activity in the body and nervous system
- opiate
- suppress or reduce pain; act like naturally occuring painkillers in the body called endorphins
- hallucinogen
- any substance that alters or distorts sensory impression
- cocaine
- a crystalline drug derived from coca leaves; used as a central nervous system stimulant and local anesthetic
- caffeine
- a natural drug with stimulant properties; found in coffee and tea and added to artificial beverages and medicine
- nicotine
- a potent stimulant drug found primarily in tobacco; nicotine is a known carcinogen
- alcohol
- common name for ethyl alcohol, the intoxicating element in fermented and distilled liquors
- marijuana
- the leaves and flowers of the hemp plant, cannabis sativa