ch.3- Consciousness and the two-track mind Flashcards
consciousness
awareness of ourselves and the environment
cognitive neuroscience
the interdisciplinary study of the brain activity linked with cognition (including perception, thinking, memory, and language)
dual processing
the principle that info is often simultaneously processed on separate conscious and unconscious tracks
selective attention
focusing of conscious awareness on a particular stimulus
change blindness
failing to notice changes in the environment
inattention blindness
failing to see visible objects when our attention is directed elsewhere
alpha waves
the relatively slow brain waves of a relaxed, awake state
hallucinations
false sensory experiences, such as seeing something in the absence of an external visual stimulus
delta waves
the large, slow brain waves associated with deep sleep
insomnia
recurring problems falling or staying sleep
narcolepsy
a sleep disorder characterized by uncontrollable sleep attacks; may go directly into REM sleep sleep, often at inopportune times
sleep apnea
a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings
night terrors
a sleep disorder characterized by high arousal and an appearance of being terrified; unlike nightmares, night terrors occur during stage 4 sleep, within 2 or 3 hours of falling asleep, and are seldom remembered
reM rebound
the tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep)
depressants
drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow bodily functions