Damage to the magnocellular pathway would most likely lead to the loss of
D. motion perception.
When cells in the middle temporal cortex respond to visual stimuli, their response depends mostly on the :
D. speed and direction of movement.
Color perception depends MOSTLY on the:
A. parvocellular pathway.
Which of the following characterizes the fovea?
A. It has the greatest perception of detail.
To what does "shape constancy" refer?
A. We can recognize objects even at different orientations.
The visual path in the parietal cortex is referred to as the:
D. dorsal stream.
According to the trichromatic theory of color vision:
A. our perception of color depends on the relative activity of three types of cones.
The one additional feature that hypercomplex cells have that complex cells don't have is:
C. hypercomplex cells have a strong inhibitory area at one end of its receptive field
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?
D. complex
An inability to recognize objects despite otherwise satisfactory vision is called:
B. visual agnosia.
Streoscopic depth perception requires the brain to detect:
B. retinal disparity.
Visual information from the lateral geniculate area goes to the:
A. primary visual cortex
The ability that you have to determine that your ryes are moving, instead of the room that you are in, is a function of which brain area?
B. area MST
The primary visual cortex is also known as the:
C. striate cortex.
The retinas of predatory birds such as hawks:
A. have a greater density of receptors than do humans on the top half of the retina.
Blindsight refers to:
B. the ability to localize visual objects within an apparently blind visual field.
Cortical area ____ appears to be where conscious visual perception occurs.
C. V1
Once information is sent to the secondary visual cortex it:
D. may return to the primary visual cortex.
Magnocellular cells are to ___ as parvocellular cells are to ____.
C. movement; color
The pathway associated with integrating vision and movement progresses from the occipital cortex to the:
D. parietal cortex.
Color constancy depends on which part of the nervous system?
C. area V4 of the occipital lobe
In comparison to the rods, cones are more:
B. sensitive to detail.
Which cell responds most strongly to a stimulus moving perpendicular to its axis?
A. complex
In the case of blindsight, losing concious visual perception would most likely be associated with:
A. loss of visual imagination.
How do the receptive fields of the inferior temporal cortex compare to those of the primary visual cortex?
A. They are sensitive to larger more complicated patterns.
Ganglion cells near the fovea in humans and other primates are called ____ ganglion cells.
D. midget
If we compare the receptive fields of two simple cells in the primary visual cortex, chosen at random, in what way are they most likely to differ?
A. orientation (angle) of a line that they respond to
When individuals with intact brains recognize faces, activity:
C. increases in the fusiform gyrus.
____ are chemicals that release energy when struck by light.
D. photopigments
A man has suffered brain damage that has left him unable to recognize the faces of his wife and children, although he can identify them by their voices. What is his condition?
D. prosopagnosia
Which theory emphasizes the idea that color vision depends on the relative responses of three kinds of cones?
A. Young-Helmholtz theory
Initially, researchers determined how many types of receptors we have for determining color:
A. through psychophysical observations.
Various types of ____ cells refine the input to ganglion cells, enabling them to respond specifically to shapes, movement, or other visual features.
D. amacrine cells
People with motion blindness probably have suffered damage to the:
C. middle-temporal cortex.
The name of the point at which the optic nerve leaves the retina is called the:
D. blind spot.
What is the shape of the receptive field to which a simple cell in the primary visual cortex responds?
D. bar in a particular orientation
____ modify the ____ sensitivity to different wavelengths of light.
D. opsins; photopigments
Why does the periphery of the retina detect faint lights better thant he fovea does?
A. more receptors converge their input onto each bipolar cells.
In the human retina, messages go from receptors at the back of the eye to ____.
D. bipolar cells
Which of the following is TRUE according to the law of of specific nerve energies?
B. Any stimulation of the auditory nerve is perceived as sound.
