EXAM 325 QUESTIONS WITH
DETAILED VERIFIED ANSWERS
ALREADY GRADED A+ LATEST
VERSION
"If an investigator wished to find the slowest speed that can be detected by the human visual
system, which of the following would be the most appropriate investigative technique?
a. The computational approach to vision.
b. Experimental ablation.
c. Visual psychophysics.
d. Anatomical staining and labelling.
e. Single cell recordings. - CORRECT ANSWER=> c. Visual psychophysics."
"For vision, the proximal stimulus is
a. the Mona Lisa.
b. a sinusoidal waveform.
c. a pond.
d. a jigsaw.
e. a pair of retinal images. - CORRECT ANSWER=> e. a pair of retinal images."
"For vision, an example of a distal stimulus is
a. a light beam.
b. a chair.
c. the retinal image.
d. the pattern of activities of light receptors.
e. the pattern of activities of retinal ganglion cells. - CORRECT ANSWER=> b. a chair."
"For vision, an example of something that is not a distal stimulus is
a. a chair.
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,b. a photograph of the retinal image.
c. a light beam.
d. a TV image of the pattern of activities of retinal ganglion cells.
e. a cat with no hair. - CORRECT ANSWER=> c. a light beam."
"Bottom-up processing is
a. data driven.
b. knowledge based.
c. concept driven.
d. like doing a jig-saw while looking at the picture on the box lid.
e. all of the visual computations performed whilst bending over. - CORRECT ANSWER=> a. data
driven."
"Which of the following is an example of bottom-up processing?
a. retinal receptor responses.
b. concept driven processing.
c. the rat-man demonstration.
d. the postman pat mask (reversed face) demonstration.
e. doing a jig-saw while using the picture on the box lid. - CORRECT ANSWER=> a. retinal receptor
responses."
"Which of the following is not an example of bottom-up processing?
a. The responses of retinal receptors.
b. Data driven processing.
c. The perception of a regular face when looking at a hollow face stimulus from behind.
d. The Marr and Hildreth edge detector.
e. Doing a jig-saw while ignoring the picture on the box lid. - CORRECT ANSWER=> c. The
perception of a regular face when looking at a hollow face stimulus from behind."
"Top-down processing is
a. all of the visual computations performed in primary visual cortex.
b. data driven.
c. primarily a descriptive process.
d. the motivating force behind the work of David Marr.
e. analogous to doing a jig-saw while looking at the picture on the box lid. - CORRECT ANSWER=>
e. analogous to doing a jig-saw while looking at the picture on the box lid."
"In research on perception, an 'ambiguous figure' is
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,a. one in which alternative hypotheses lead to alternative visual perceptions.
b. impossible to see.
c. one in which cues are reduced so visual hypotheses are difficult to generate.
d. exemplified by the 'Dalmatian dog' figure.
e. exemplified by 'Rat-Man'. - CORRECT ANSWER=> a. one in which alternative hypotheses lead to
alternative visual perceptions."
"In research on visual perception, a 'hidden figure' is
a. one in which cues are reduced so visual hypotheses are difficult to generate.
b. exemplified by the Necker Cube.
c. exemplified by 'Rat-Man'.
d. an example of size-constancy.
e. impossible to find. - CORRECT ANSWER=> a. one in which cues are reduced so visual
hypotheses are difficult to generate."
"In size-constancy
a. objects appear to be the same size only if they produce the same sized retinal images.
b. objects that are different in physical size are made to look the same by viewing them from
different distances.
c. objects appear to be the same size when they are physically the same size.
d. objects appear to be the same size even though they are physically different sizes.
e. objects must have different sized retinal images for them to appear to be of the same physical
size. - CORRECT ANSWER=> c. objects appear to be the same size when they are physically the
same size."
"In size-constancy
a. objects look the same size only if they produce the same size retinal images.
b. objects look the same size when they are different in physical size.
c. objects look the same size when they are physically the same size.
d. objects look different in size when they are physically the same size.
e. objects look different in size when they produce the same size retinal images. - CORRECT
ANSWER=> c. objects look the same size when they are physically the same size."
"The perceived size of a retinal afterimage is larger when viewing a distant surface than a near
surface because
a. of lightness constancy.
b. of complicated retinal processing.
c. the size of the retinal image changes.
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, d. of vergence eye movements.
e. of size constancy. - CORRECT ANSWER=> e. of size constancy."
"The perceived size of a retinal afterimage
a. depends critically on eye-movements.
b. changes only when the physical size of the afterimage is changed.
c. is not affected by the distance of the surface against which it is viewed.
d. is larger when viewing a distant surface than a near surface.
e. is larger when viewing a near surface than a distant surface - CORRECT ANSWER=> d. is larger
when viewing a distant surface than a near surface."
"The actual size of a retinal afterimage (in degrees of visual arc)
a. is larger when viewing a distant surface than a near surface.
b. is larger when viewing a near surface than a distant surface.
c depends critically on eye-movements.
d. changes only when the physical size of the adapting stimulus is changed.
e. depends on whether the viewing surface is at the same distance as the adapting surface -
CORRECT ANSWER=> d. changes only when the physical size of the adapting stimulus is changed."
"In the illusion known as Shepard's Tables
a. the two table tops have different sizes on the retina but look the same size.
b. we learn that the visual system is not able to read off the content of the retinal image.
c. we experience a visual illusion in which two tables are perceived to be at different distances
from us when they are not.
d. there is an illusory impression of the length of the table legs.
e. the tables look identical until the legs are removed. - CORRECT ANSWER=> b. we learn that the
visual system is not able to read off the content of the retinal image."
"Which of the following statements is true?
a. The successful evolution of humankind was a precursor to the successful evolution of its high
fidelity visual system.
b. It is puzzling that a species so well evolved as humankind, has such a low fidelity visual
system.
c. Evolution of the human brain could take place only after the evolution of the human visual
system.
d. The human visual system evolved to meet the demands of an evolving species.
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