Question

1. Higher forebrain visual structures (such as superior colliculus, LGN, V1) receive input from: a. both eyes but only from the ipsilateral visual field. b. both eyes but only from the contralateral visual field c. only one eye and only from the contralateral visual field d. only one eye and only from the ipsilateral visual field 2. If a patient has damage to the visual system that results in blindness in the periphery of both the left and right visual fields, where might the damage lie? a. Left optic nerve b. Left optic radiations c. Right optic tract d. Optic tract 3. Which of the statements about rods is false? a. Rods are specialized for high acuity vision b. Rods are achromatic (black and white) c. Rods are rare in the fovea d. Rods are highly sensitive to light e. There are about 120 million rods in the retina 4. A lesion in the hand representation area of primary motor cortex of the left hemisphere would be expected to cause: a. weakness or complete paralysis of the right hand b. weakness or complete paralysis of the left hand c. loss of the ability to perform complex tasks with the left hand d. loss of the ability to perform complex movement sequences with the right hand, without paralysis e. none of the above 5. Which of the following statements about the visual system is false? a. both ON- and OFF-center retinal ganglion cells are stimulated by the same spot of light simultaneously b. nasal hemiretina axons project contralaterally, while temporal hemiretina axons project ipsilaterally c. the retinal ganglion cells are the only cells that directly respond to light d. receptive fields can overlap e. horizontal cells make lateral connections between photoreceptor cells

1. Higher forebrain visual structures (such as superior colliculus, LGN, V1) receive input from:
a. both eyes but only from the ipsilateral visual field.
b. both eyes but only from the contralateral visual field
c. only one eye and only from the contralateral visual field
d. only one eye and only from the ipsilateral visual field
2. If a patient has damage to the visual system that results in blindness in the periphery of both the left and right visual fields, where might the damage lie?
a. Left optic nerve
b. Left optic radiations
c. Right optic tract
d. Optic tract
3. Which of the statements about rods is false?
a. Rods are specialized for high acuity vision
b. Rods are achromatic (black and white)
c. Rods are rare in the fovea
d. Rods are highly sensitive to light
e. There are about 120 million rods in the retina
4. A lesion in the hand representation area of primary motor cortex of the left hemisphere would be expected to cause:
a. weakness or complete paralysis of the right hand
b. weakness or complete paralysis of the left hand
c. loss of the ability to perform complex tasks with the left hand
d. loss of the ability to perform complex movement sequences with the right hand, without paralysis
e. none of the above
5. Which of the following statements about the visual system is false?
a. both ON- and OFF-center retinal ganglion cells are stimulated by the same spot of light simultaneously
b. nasal hemiretina axons project contralaterally, while temporal hemiretina axons project ipsilaterally
c. the retinal ganglion cells are the only cells that directly respond to light
d. receptive fields can overlap
e. horizontal cells make lateral connections between photoreceptor cells

Added by Daniel J.

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