Consciousness Flashcards
The awareness of internal and external stimuli
Consciousness
device that monitors the electrical activity of the brain over time by means of recording electrodes attached to the surface of the scalp
electroencephalograph (EEG)
periodic fluctuations in physiological functioning
biological rhythms
24-hour biological cycles found in humans and many other species
circadian rhythm
records muscular activity and tension
electromyograph
records eye movements
electrooculograph
records contractions of the heart
electrocardiograph
stage 1 of sleep
light sleep, lasts 10-12 minutes
stage 2 of sleep
light sleep that lasts 10-25 minutes
stage 3 of sleep
deep sleep; characterized by delta waves
a deep stage of sleep marked by rapid eye movements, high-frequency brain waves, and dreaming
REM
chronic problems in getting adequate sleep that results in daytime fatigue and impaired functioning
insomnia
a disease marked by sudden and irresistible onsets of sleep during normal waking periods
narcolepsy
involves frequent, reflexive gasping for air that awakens a person and disrupts sleep
sleep apnea
sleepwalking
somnambulism
marked by potentially troublesome dream enactments during REM periods
REM sleep behavior disorder
a systematic procedure that typically produces a heightened state of suggestibility
hypnosis
a splitting off of mental processes into two separate, simultaneous streams of awareness
dissociation
family of practices that train attention to heighten awareness and bring mental processes under greater voluntary control
meditation
chemical substances that modify mental, emotional, or behavioral functioning
psychoactive drugs
drugs derived from opium that are capable of relieving pain
narcotics
sleep-inducing drugs that tend to decrease central nervous system activation and behavioral activity
sedatives
drugs that tend to increase nervous system activation and behavioral activity
stimulants
diverse group of drugs that have powerful effects on mental and emotional functioning, marked notably by distortions in sensory and perceptual experience
hallucinogens
a progressive decrease in a person’s responsiveness to a drug as a result of continued use
tolerance
when a person must continue to take a drug to avoid withdrawal illness
physical dependence
when a person must continue to take a drug to satisfy intense mental and emotional craving
psychological dependence
