chap 7 Flashcards
consciousness
a state of awareness (feelings, sensations, ideas, and perceptions)
REM sleep
(active sleep) - a stage of sleep characterized by rapid eye movements, a high level of brain activity, deep relaxation of the muscles, and dreaming
circadian rhythm
(internal biological clock) - the rhythm of activity and inactivity lasting approximately 24hrs
Insomnia
the failure to get enough sleep at night in order to feel rested the next day
Narcolepsy
a condition characterized by suddenly falling asleep or feeling very sleepy during the day
night terrors
sleep disruptions that occur during Stage IV of sleep, involving screaming, panic, or confusion
sleepwalking
walking or carrying out behaviors while asleep
hypnosis
a state of consciousness resulting from a narrowed focus of attention and characterized by heightened suggestibility
posthypnotic suggestion
a suggestion made during hypnosis that influences the participant’s behavior afterward
biofeedback
the process of learning to control bodily states with the help of machines monitoring the states to be controlled
constriction
a narrowing of a channel or vessel, or a feeling of tightness or pressure
meditation
the focusing of attention to clear one’s mind and produce relaxation
psychoactive drugs
chemicals that affect the nervous system and result in altered consciousness
augment
chemicals that affect the nervous system and result in altered consciousness
hallucinations
perceptions that have no direct external cause
