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32 Cards in this Set
- Front
- Back
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fechner's paradox
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brightness of light presented to one eye is dimmed when weak light presented to other eye
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a larger field during dark adaption will lead to
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a larger second portion of the curve
more rods are involved, so the rod portion becomes larger |
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brigher, longer preadapt to dark adaption will cause
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higher initial thredshold
later rod cone break longer time to complete adaptation |
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if the right image is made larger the left in the frontoparallel plane, which side will appear closer
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the left ?? check this!!
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xyz sustem of color tristimulus values is based on
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3 imaginary primaries
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hue is associated with
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dominant wavelength
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chroma is related to
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saturation
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emmert law
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why an afterimage is bigger when pecieved on more distant surface
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granit harper
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CFF varies linearly with the log of the stimulus area
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will CFF increase or decrease with adaptation level
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increase
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a lens that displays linearity
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does not distort sine patterns from input to output
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mach band pehnomenon due to
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center surround orientation
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arden ratio is
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light max/dark trough
EOG normal is over 1.5 |
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on incrememntal treshold curve, quantal fluctuations are reflected by the section of the curve ahving slop _____ and is expressed by ____law
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1/2, DeVries
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magno projects to
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4c? check this!
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grassmans laws
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refer to metameric matches
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what does NOT exhitib brezold brucke effect
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unique hues
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true or false
monochromatic hues fall along the spctrum lcus, nonspectrual purples fall oalong straight line connecting 400 and 700 nm at the base |
true
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are CIE coordinate values fixed
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no
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if a myope changes from CLs to specs, VOR will...
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decrease
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as fxn slowly changes from far to near VOR will
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gradually increase
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how are saccades affected by age
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peak velocity decreases
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how would cerebellum lesion affect saccades
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causes dysmetria
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total blink duration
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275 msec
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pursuits and aging
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gain decreases
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neural control for disparity vergence
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weak pulse-step
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primary acc stimulus
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blur
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AC/A in presbyopes
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0
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step change in OD, OS occluded
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acc vergence response in OS is greater than in OD (check this)
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which is larger:
response AC/A or simulus AC/A |
response
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fixational pause duration durring reading
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250 msec
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myope
4 exo at 6m 2 exo at 40cm PD is 6.5cm AC/A is |
7:1
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