Sleep 1
Periodic loss of consciousness- distinct from unconsciousness resulting from a coma
What is sleep?
Mental visions or activities that occur when you sleep
What is a dream?
The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment
What is sensation?
Sensory nerve endings that respond to stimuli
What are sensory receptors?
Early/light sleep, involves hypnagogic sensations, high amplitude
What is NREM 1?
Your biological clock
What is a circadian rythym
Difficulty falling or staying asleep-caused by stress, depression, or medication
What is insomnia?
The process of organizing and interpreting sensory information
What is perception?
Conversion of one form of energy into another
Activation often unconsciously of certain associations, thus predisposing one's perception, memory, or response
What is priming?
Bizarre experiences when you are sleeping such as jerking, falling, floating
What are hypnagogic sensations?
When someone stops breathing for a minute hundreds of times per night
What is sleep apnea?
Ability to focus on a single conversation or speaker in a noisy environment
What is the cocktail party effect?
Start with sensory input (Independent of prior knowledge and experiences)
What is bottom up processing?
Below one's threshold for conscious awareness
What is subliminal?
You typically get more REM sleep if you missed out on it
What is REM Rebound?
Suddenly falling asleep without any warning when you are awake
What is narcolepsy?
Relationship between the physical characteristics of stimuli. Our psychological experience of them
What are psychophysics?
Focusing of conscious awareness on particular items - What we deem important
What is selective attention?
Dreams help us sort the days events and consolidate our memories
What is consolidation/information processing theory?
Sleep walking in NREM 3 sleep
What is somnambulism?
Dreams result from random activation of brain cells responsible for eye movement and muscle movement
To be able to tell the difference between degrees of stimulation two stimuli must differ by a constant minimum %
What is Weber's Law?
Guided by experience and higher level processes - we see what we expect to see - uses prior knowledge
What is top down processing?
Diminished sensitivity to stimuli as a consequence of constant stimulation
What is sensory adaptation?