Name: Score:
42 Multiple choice questions
Term 1 of 42
tilt aftereffect
Adaptation to bars of a specific width changes the perceived width of slightly larger or
smaller bars.
the detection of spatial features in the image
the perceptual illusion of tilt, produced by adaptation to a pattern of a given orientation
higher spatial frequencies and lower temporal frequencies, for patterns and textures,
parvocellular
Term 2 of 42
Transient channel
the perceptual illusion of tilt, produced by adaptation to a pattern of a given orientation
Another stimuli that psychologists use to study vision, luminance grating with a spatial
filter that softens the edges
lower spatial frequencies and higher temporal frequencies, movement, magnocellular,
movement, magnocellular
Adaptation to bars of a specific width changes the perceived width of slightly larger or
smaller bars.
Term 3 of 42
Humans can't detect flickering at frequencies above _____ with our photopic vision or above _____
with scotopic
breaks down images into multiple components
sine wave gratings (luminance gratings)
60 Hz for photopic; 15 Hz for scotopic
How close the bars are together; cycles per degree
,Term 4 of 42
Why does the left side of the CSF drop off?
You need at least two receptors per grating cycle to detect that level of detail
Another stimuli that psychologists use to study vision, luminance grating with a spatial
filter that softens the edges
Sustained channel and transient channel
Antagonistic center-surround receptive fields (most of our ganglion cells seem to be
more responsive to medium frequencies
Term 5 of 42
What are gabor patches?
Antagonistic center-surround receptive fields (most of our ganglion cells seem to be
more responsive to medium frequencies
Another stimuli that psychologists use to study vision, luminance grating with a spatial
filter that softens the edges
the perceptual illusion of tilt, produced by adaptation to a pattern of a given orientation
higher spatial frequencies and lower temporal frequencies, for patterns and textures,
parvocellular
Term 6 of 42
strabismus
Detect changes that are smaller than the distance between our photo receptors
crossed eyes; weak muscles, neurological issues, vision issues
rough map of the world and its features (edges and boundaries)
intensity difference between the lightest part and the darkest part
,Term 7 of 42
Filter-rectify-filter (FRF)
the detection of spatial features in the image
A measure of our ability to detect a flickering light
the perceptual illusion of tilt, produced by adaptation to a pattern of a given orientation
A sequence of image processing operations thought to mediate texture analysis; its
output discriminates between image regions differing in visual texture.
Term 8 of 42
What is spatial frequency and how is it measured?
How close the bars are together; cycles per degree
Because once the bars get too close together it's impossible to see them
coarse, shape and structure
sine wave gratings (luminance gratings)
Term 9 of 42
How does receptor size and spacing limit visual acuity
You need at least two receptors per grating cycle to detect that level of detail
breaks down images into multiple components
harder to detect (this depends on the difference in spatial frequencies for two patterns)
combine flickering with luminance grating
, Term 10 of 42
Vernier acuity test illustrates
Finer; texture and edges
Low spatial frequencies
the detection of spatial features in the image
Edge detection
||
||
Term 11 of 42
Are humans better at detecting vertical/horizontal lines or oblique lines
Photopic
Contrast threshold
medium
VH
Term 12 of 42
What are the two separate pathways in spatiotemporal vision?
detect different spatial frequencies
Sustained channel and transient channel
How close the bars are together; cycles per degree
sine wave gratings (luminance gratings)
42 Multiple choice questions
Term 1 of 42
tilt aftereffect
Adaptation to bars of a specific width changes the perceived width of slightly larger or
smaller bars.
the detection of spatial features in the image
the perceptual illusion of tilt, produced by adaptation to a pattern of a given orientation
higher spatial frequencies and lower temporal frequencies, for patterns and textures,
parvocellular
Term 2 of 42
Transient channel
the perceptual illusion of tilt, produced by adaptation to a pattern of a given orientation
Another stimuli that psychologists use to study vision, luminance grating with a spatial
filter that softens the edges
lower spatial frequencies and higher temporal frequencies, movement, magnocellular,
movement, magnocellular
Adaptation to bars of a specific width changes the perceived width of slightly larger or
smaller bars.
Term 3 of 42
Humans can't detect flickering at frequencies above _____ with our photopic vision or above _____
with scotopic
breaks down images into multiple components
sine wave gratings (luminance gratings)
60 Hz for photopic; 15 Hz for scotopic
How close the bars are together; cycles per degree
,Term 4 of 42
Why does the left side of the CSF drop off?
You need at least two receptors per grating cycle to detect that level of detail
Another stimuli that psychologists use to study vision, luminance grating with a spatial
filter that softens the edges
Sustained channel and transient channel
Antagonistic center-surround receptive fields (most of our ganglion cells seem to be
more responsive to medium frequencies
Term 5 of 42
What are gabor patches?
Antagonistic center-surround receptive fields (most of our ganglion cells seem to be
more responsive to medium frequencies
Another stimuli that psychologists use to study vision, luminance grating with a spatial
filter that softens the edges
the perceptual illusion of tilt, produced by adaptation to a pattern of a given orientation
higher spatial frequencies and lower temporal frequencies, for patterns and textures,
parvocellular
Term 6 of 42
strabismus
Detect changes that are smaller than the distance between our photo receptors
crossed eyes; weak muscles, neurological issues, vision issues
rough map of the world and its features (edges and boundaries)
intensity difference between the lightest part and the darkest part
,Term 7 of 42
Filter-rectify-filter (FRF)
the detection of spatial features in the image
A measure of our ability to detect a flickering light
the perceptual illusion of tilt, produced by adaptation to a pattern of a given orientation
A sequence of image processing operations thought to mediate texture analysis; its
output discriminates between image regions differing in visual texture.
Term 8 of 42
What is spatial frequency and how is it measured?
How close the bars are together; cycles per degree
Because once the bars get too close together it's impossible to see them
coarse, shape and structure
sine wave gratings (luminance gratings)
Term 9 of 42
How does receptor size and spacing limit visual acuity
You need at least two receptors per grating cycle to detect that level of detail
breaks down images into multiple components
harder to detect (this depends on the difference in spatial frequencies for two patterns)
combine flickering with luminance grating
, Term 10 of 42
Vernier acuity test illustrates
Finer; texture and edges
Low spatial frequencies
the detection of spatial features in the image
Edge detection
||
||
Term 11 of 42
Are humans better at detecting vertical/horizontal lines or oblique lines
Photopic
Contrast threshold
medium
VH
Term 12 of 42
What are the two separate pathways in spatiotemporal vision?
detect different spatial frequencies
Sustained channel and transient channel
How close the bars are together; cycles per degree
sine wave gratings (luminance gratings)
