Chapter 3: Consciousness And The Two Track Mind Flashcards
consciousness
our awareness of ourselves and our environment
cognitive neuroscience
the interdisciplinary study of the brain activity linked with cognition (including perception, thinking, memory, and language)
dual processing
the principle that information is often simultaneously processed on separate conscious and unconscious tracks
selective attention
the focusing of conscious awareness on a particular stimulus
selective inattention
the inability to sense stimulus outside of a particular stimulus
inattentional blindness
failing to see visible objects when our attention is directed elsewhere
change blindness
failing to notice changes in the environment
circadiam rhythm
the biological clock; regular bodily rhythms that occur on a 24-hour cycle
REM sleep
rapid eye movement sleep, a recurring sleep stage during which vivid dreams commonly occur.
paradoxical sleep
another name for REM sleep because muscles are relaxed and do not move but other body systems are active
alpha waves
the relatively slow brain waves of a relaxed, awake state
delta waves
the large, slow brain waves associated with deep sleep
hallucinations
false sensory experiences, such as seeing something in the absence of an external visual stimulus
sleep loss (effects)
memory, concentration, mood, hunger and obesity, immune system, risk of fatal accidents, etc.
sleep theories
1) sleep protects
2) sleep helps us recuperate
3) sleep is for making memories
4) sleep feeds creative thinking
5) sleep may play a role in the growth process
insomnia
recurring problems in falling or staying asleep
narcolepsy
a sleep disorder characterized by uncontrollable sleep attacks. may lapse directly into REM sleep.
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 two or three hours of falling asleep , and are seldom remembered.
REM dreams
vivid, emotional, bizarre, and realistic ‘hallucinations’ of the mind
Manifest content
according to Freud, the remembered story line of a dream
dreams
a sequence of images, emotions, and thoughts passing through a sleeping person’s mind.