Biological Flashcards
Consciousness
Our awareness of ourselves and our environment
Dual Processing
The idea that information is processed simultaneously on conscious and unconscious tracks.
The book Sight Unseen is about a woman who claimed she could not see, but acted as if she could. What is happening?
Visual Perception Track: recognize things and plan future actions
Visual Action track: guides moment-to-moment actions.
Parallel Processing
Auto pilot, unconscious
Serial Processing
Focused attention, conscious
Selective attention
The focusing of conscious awareness on a particular stimulus
Cocktail party effect
Inattentional blindness
Failing to see visible objects when our attention is elsewhere.
Gorilla Experiment
Change Blindness
Failing to notice changes in the environment
Brain Games
Regular bodily rhythms in 24 hour period
Circadian Rhythm
Circadian Pathway: Once light-sensitive retinal proteins are triggered, signals go to _____ in the hypothalamus, which does what?
Suprachiasmatic nucleus (SCN)
Cause pineal gland to make less melatonin in the morning, and more in the evening.
90 minute cycle 5 sleep stages + awake stage.
Awake: alpha waves, slow/relaxed.
Stage 1: hallucinations
Stage 2: sleep spindles: clearly asleep.
Stage 3: Transitional
Stage 4: delta waves: large slow brain waves, deep sleep. Sleepwalking/wet the bed would occur here.
Stage 5: REM sleep, dreaming, rapid eye movements.
As we sleep, we see more of what stages and less of others?
More REM/stage 2, less stage 4
Sleep deprivations results on hunger hormones
More Ghrelin (hunger) Less Leptin (hunger suppressing) More cortisol (makes body fat)
