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Multiple Choice Quiz
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1
Which of these statements is NOT true about the optic nerve?
A)It is retinotopically organized.
B)It is myelinated inside the eye.
C)It consists of retinal ganglion cell axons.
D)All neural processing of visual information in the brain depends on it.
2
The anatomical locus where the optic nerves from the two eyes converge and are rearranged is the optic:
A)tract
B)lemniscus
C)chiasm
D)nucleus
3
Information about objects to the left of the point of fixation fall on the _____ side of the retina and is sent to the ______ side of the brain.
A)right; right
B)right; left
C)left; right
D)left; left
4
Information about an object whose image falls on the nasal portion of the eye is sent to the ________ side of the brain.
A)left
B)right
C)ipsilateral
D)contralateral
5
In humans the superior colliculus is involved in:
A)visual processing for perception
B)resetting circadian rhythms
C)controlling eye movements
D)focusing attention towards the point of fixation
6
The lateral geniculate nucleus consists of:
A)4 parvocellular layers and 2 magnocellular layers
B)3 parvocellular layers and 3 magnocellular layers
C)2 parvocellular layers and 4 magnocellular layers
D)1 parvocellular layers and 5 magnocellular layers
7
The cells of the lateral geniculate nucleus respond only to stimulation in the:
A)nasal retina
B)temporal retina
C)ipsilateral visual field
D)contralateral visual field
8
Within a layer of the lateral geniculate nucleus (LGN), adjacent cells receive information about ______ regions of the retina. Between layers of the LGN, cells aligned with each other receive information about _________ regions of the retina.
A)adjacent; adjacent
B)adjacent; the same
C)the same; adjacent
D)the same; the same
9
Which of these statements is true about P cells in the LGN?
A)They respond more quickly and transiently than M cells
B)They are rarely sensitive to the color of the light on their receptive fields
C)They are orientation selective
D)They analyze spatial information at a finer level of detail than M cells
10
The LGN receives substantial input from visual cortex, which is an example of what kind of connection?
A)feedforward
B)feedback
C)multisensory
D)bottom-up
11
The visual cortex is located in the _______ lobe of the brain.
A)occipital
B)temporal
C)frontal
D)parietal
12
Damage to localized regions of the visual cortex can result in ________ in the visual field.
A)lesions
B)aneurysms
C)scotomas
D)tumors
13
13.The fact that the representation of the foveal visual field in visual cortex is highly exaggerated compared to more eccentric regions of the visual fields is known as:
A)the oblique effect
B)ocular dominance
C)cortical magnification
D)the ambiguity problem
14
Cortical cells differ from all LGN cells in that they are selective for:
A)color
B)orientation
C)spatial position
D)size
15
Hypercomplex cells differ from simple and complex cells in that they are also selective for:
A)direction of motion
B)binocular correspondence
C)color
D)contour length
16
The relative preference of a visual cortical cell for stimulation from a particular eye is called:
A)ocular dominance
B)monocular segregation
C)binocular integration
D)meridonal amblyopia
17
The aggregation of vertical stacks of cells that cover a complete range of stimulus orientations and ocular dominance is known as a:
A)column
B)hypercolumn
C)layer
D)stream
18
The parietal stream is synonymous with the:
A)"what" pathway
B)"focal" system
C)dorsal stream
D)ventral pathway
19
A lesion in the magnocellular layers of the LGN of monkeys results in a deficit in:
A)flicker perception
B)texture perception
C)acuity
D)color vision
20
The inability to recognize previously familiar faces is known as:
A)achromatopsia
B)akinetopsia
C)blindsight
D)prosopagnosia





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