Sleep and Dreams Flashcards
Consciousness
our awareness of ourselves and our environment
Selective Attention
focusing conscious awareness on a particular stimulus
Inattentional Blindness
failure to see visible objects when our attention is elsewhere
Circadian Rhythm
internal biological clock; regular bodily rhythms that occur on a 24 hr cycle
REM Sleep
Sleeprecurring sleep stage during which vivid dreams commonly occur; also know as “paradoxical sleep”
Alpha Waves
relatively slow brain waves of a relaxed, awake state
Sleep
periodic, natural, reversible loss of consciousness- as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation
Insomnia
recurring problems in falling or staying asleep
Narcolepsy
sleep disorder in which a person has uncontrollable sleep attacks, sometimes lapsing directly into REM sleep
Sleep Apnea
sleep disorder in which a sleeping person repeatedly stops breathing until the blood oxygen is so low it awakens the person just long enough to draw a breath
Dream
sequence of images, emotions, and thoughts passing through a sleeping person’s mind
Manifest Content
according to Freud, the remembered storyline of a dream
Latent Content
Freud- underlying meaning of a dream
REM Rebound
tendency for REM sleep to increase following REM sleep deprivation
Wish Fulfillment
Freud- dreams provide a safety blanket for us to discharge our unacceptable feelings and may include symbolic meanings to signify said feelings
Information Processing
may help to shift, sort, and fix a days experience in our mind
Physiological
periodic stimulation to development and preserve neural pathways
Cognitive Development
maturation and cognitive development
Decreased Sleep
diminished immune system, attention deteriorates, accidents increase, emotional irritability, fatigue, and subsequent death
Post-Hypnotic Suggestion
carried out after the subject is no longer hypnotized
Post-Hypnotic Amnesia
supposed inability to recall what happened during hypnosis
Psychoactive Drug
chemical substance that alters perceptions and mood
Withdrawal
stopping use, users may experience undesirable effects of withdrawal
Dependence
absence of a drug may lead to feelings of physical pain, intense cravings, and negative emotions
Depressants
reduce neural activity and slow bodily functions (alcohol, opiates, barbiturates)
Hallucinogens
psychedelic drugs that distort perceptions and evoke sensory images in the absence of sensory input
Seasonal Affective Disorder (SAD)
mood disorder experienced during dark winter months
Night Terrors
experienced during stage 4 sleep, where sleep walking and sleep talking occur
