chapter 3 consciousness and the two-track mind recognition Flashcards
(43 cards)
our awareness of ourselves and our environment.
consciousness
the interdisciplinary study of the brain activity linked with cognition (including perception, thinking, memory, and language).
cognitive neuroscience
the principle that information is often simultaneously processed on separate conscious and unconscious tracks.
dual processing
a condition in which a person can respond to a visual stimulus without consciously experiencing it.
blindsight
the focusing of conscious awareness on particular stimulus.
selective attention
failing to see visible objects when our attention is directed elsewhere
inattentional blindness
failing to notice changes in the environment.
change blindness
the biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24-hour cycle.
circadian rhythm
rapid eye movement sleep, a recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep, because the muscles are relaxed (except for minor twitches) but other body systems are active.
REM sleep
the relatively slow brain waves of a relaxed, awake state.
Alpha waves
periodic, natural, reversible loss of consciousness-as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation.
Sleep
false sensory experiences, such as seeing something in the absence of an external visual stimulus.
hallucinations
the large, slow brain waves associated with deep sleep.
delta waves
recurring problems in falling or staying asleep.
Insomnia
a sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often at inopportune times.
narcolepsy
a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings.
sleep apnea
a sleep disorder characterized by high arousal and an appearance of being terrified; unlike nightmares, night terror occur during NREM-3 sleep, within two or three hours of falling asleep, and are seldom remembered.
Night terrors
a sequence of images, emotions, and thoughts passing through a sleeping person’s mind. Dreams are notable for their hallucinatory imagery, discontinuities, and incongruities, and for the dreamer’s delusional acceptance of the content and later difficulties remembering it.
Dream
according to Freud, the remembered story line of a dream (as distinct from its latent, or hidden, content).
manifest content
according to Freud, the underlying meaning of a dream (as distinct from its manifest content).
latent content
the tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep).
REM rebound
a social interaction in which one person (the hypnotist) suggests to another (the subject) that certain perceptions, feelings, thoughts, or behaviors will spontaneously occur.
hypnosis
a suggestion, made during a hypnosis session, to be carried out after the subject is no longer hypnotized; used by some clinicians to help control undesired symptoms and behaviors.
posthypnotic suggestion
a split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others.
dissociation