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Psychology
44 cards·by BraineosPhD
Sensation
Basic fundamental part of receiving information
Perception
When your brain selects
Absolute Threshold
Minimal amount of stimulus needed to be detectable
Cornea
front part of eye that lets light in
Vitreous humor
keeps eye inflated
Choroid
absorbs unneeded light
Cones
About 6 million
Foeva
really small part of eye with all cones
Original Theory
We have a different receptor for each color
Foeva
really small part of eye with all cones
Original Theory
We have a different receptor for each color
Young-Helmholtz Trichromatic Theory
We only need three receptors to see all colors
Hering Opponent Process Theory
Three receptors: red/green
Combined theory
both are sort-of right (receptor level = Young-Helmholtz; Nueron level = Herring Theory
Trichromat
people with normal color vision
Dichromat
pepople whos cones sense wrong color
Monchromat
people who can only see one color
Bottom-Up Processing
starts at stimulus and works it's way up
Top-down Processing
starts in brain and is affected by past experience
Figure/Ground Law
ability to separate figure from background
Similarity Law
We automatically group similar things together
Proximity Law
Group things together when they are in close proximity to eacht other
Good Continuation Law
See lines as continuous instead of separate
Closure Law
Even with gaps we see closed shapes
Monocular clues
only require one eye
Relative size
self-explanitory
Binocular Cues
require both eyes
Retinal Disparity
images that reach eye are slightly different
Frequency
number of cycles per minute in sound (Hz)
Pitch
sensation of frequency
Pina
visible part of ear that directs sound
Cochlea
part of ear with receptors
Frequency Theory
Pitch is determined by the frequency of neural impulses
Place Theory
Pitch is determined by which cells respond to certain pitches
Combined Theory
Both are correct: Low = frequency theory / High = place theory
Olfaction
fancy talk for smell
Do we learn smells?
Yes and culture has a big influence in this
Dichotic
different messages are delivered into each ear
Automaticity
the ability to do things automatically (without thinking about it)
REM Sleep
Muscles relax / Occurs 4-6 times per night in light sleep / Rebound: you make up for REM periods
later / Without this: Tend to be more irrit
Freud's Dream Theory
Believed there was an "unconsciousness" and our dreams are the safe way we live out the
fantasies of our unconsciousness
Activation Synthesis Theory
When you sleep your cortex is still active but has no input which results in your cortex being
activated by brain activity and synthesizing
Narcolepsy
the inability to stay awake even with a good night's sleep
Sleep Apnea
Person stops breathing until they wake up gasping for air