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The receptive field of a receptor is the ____.​


A) point at which the optic nerve exits the retina
B) ​axon hillock
C) ​point in space from which light strikes the receptor
D) point where light shines on, and excites, the visual cortex

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What would be the likely outcome of a person who was blind at birth,and had vision restored later in life by the removal of cataracts (clouded lenses) ?​


A) quick development of normal vision
B) ​trouble describing the shapes of objects
C) ​trouble identifying the location of light
D) inability to use touch and sound cues to maneuver around in a building

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B

The primary visual cortex sends its information ____.​


A) to the lateral geniculate nucleus
B) ​to area V1
C) ​to area V2
D) back to the retina

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The name of the point at which the optic nerve leaves the retina is called the ____.​


A) blind spot
B) ​fovea
C) ​optic chiasm
D) ganglion

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Johannes Müller held that whatever excites a particular nerve establishes a special kind of energy unique to that nerve.​

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According to the trichromatic theory of color vision ____.​


A) there are only three rods and three cones in each eye
B) ​there are only three colors of light in the world
C) ​rods are important for perception of light colors
D) our perception of color depends on the relative activity of three types of cones

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Cortical area ____ appears to be where conscious visual perception occurs.​


A) V4
B) ​V3
C) ​V2
D) V1

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Photopigments are stable in the dark.​

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True

Which statement is TRUE with regard to peripheral vision?​


A) It is very sensitive to detail.
B) ​It is easier to recognize single objects in the periphery that are not surrounded by other objects.
C) ​It is not very sensitive to light.
D) It is most sensitive to color, which helps to differentiate multiple objects clearly.

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​Describe the difference between parvocellular and magnocellular neurons and pathways.

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The parvocellular neurons,with small cel...

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Cells in the inferior temporal cortex that are sensitive to a particular shape are also likely to respond to the shape's ____.​


A) figure-ground reversal
B) ​color
C) ​motion
D) mirror-reversal

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Stereoscopic depth perception requires the brain to detect ____.​


A) amblyopia
B) ​retinal disparity
C) ​strabismus
D) contrasting imagery

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According to the trichromatic theory of color vision,the most important factor in determining the color we see is the ____.​


A) velocity of the action potential
B) ​absolute activity of a single cone
C) ​difference between cone and rod activity
D) relative activity of short, medium, and long wavelengths

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Parvocellular neurons most likely receive input from ____.​


A) magnocellular neurons
B) ​rods
C) ​bipolar cells that receive input from cones
D) the periphery of the retina

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C

Shapes are more easily identified with peripheral vision than foveal vision.​

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What type of cell responds to a pattern of light in a particular orientation anywhere within its large receptive field,regardless of the exact location of the stimulus?​


A) simple
B) ​complex
C) ​bipolar
D) ganglion

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What is responsible for sharpening contrast at visual borders?​


A) receptive fields
B) ​lateral inhibition
C) ​retinal disparity
D) the direction in which the light shines

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Simple cells are found exclusively in the primary visual cortex.​

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What is one way to determine whether a given cell in the primary visual cortex is "simple" or "complex"?​


A) the shape of its receptive field
B) ​whether its receptive field is monocular or binocular
C) ​whether it can respond equally to lines in more than one location
D) whether it is sensitive to the orientation of the stimulus

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Chemicals that release energy when struck by light are called ____.​


A) photo-optics
B) ​photopigments
C) ​opsins
D) kestrels

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