Biopsych Exam 2 Quiz questions
recognize visual objects
A person with visual agnosia is anable to...
Three kinds of cones
According to the Young-Helmholtz theory, what is the basis for color vision?
contrasting the activity in one area of the visual field with that of the others
According to the retinex theory, we perceive color by...
mirror-reversal
Cells in the inferior temporal cortex that are sensitive to a particular shape are also likely to respond to the shape's ....
Retinex
Color and brightness are best explained by the ...theory of color vision.
V1
Cortical area _____ appears to be where conscious visual perception occurs.
Left eye
Cutting the left optic nerve in front of the optic chiasm would result in blindness in the...
Motion perception
Damage to the magnocellular pathway would most likely lead to the loss of ...
Red/Green
Difficulty distinguishing between .... and ..... is the most common form of color vision deficiency.
Which statement characterizes the fovea?
Greatest perception of detail
faces
Human newborns come into the world predisposed to pay more attention to ____ than any other stationary displays
recognizing different kinds of plants and animals
In addition to having difficulty recognizing faces, people with prosopagnosia may have difficulty ...
Sensitive to detail
In comparison to rods, cones are more ...
Horizontal cells
In the vertebrate retina, which cells are responsible for lateral inhibition?
horizontal cells
In the vertebrate retina, which cells are responsible for lateral inhibition?
To bipolar cells within the retina
In vertebrate retinas, receptors send their messages ...?
Foveal vision
In which vision is "each ganglion cell excited by a single cone"?
False
Infants are born with the ability to control their visual attention
True
Johannes Muller held that whatever excites a particular nerve establishes a special kind of energy unique to that nerve
all-trans-retinal
Light energy converts 11-cis-retinal to...
left half
Light from the right half of the world strikes which part of the retina?
Is sent back to the retina
Once information is sent to the secondary visual cortex it...
Movement
Once within the cerebral cortex, the magnocellular pathway continues, with a ventral ...
True
Photopigments are stable in the dark
False
Shapes are more easily identified with peripheral than with foveal vision. (true or false)
Recognizing faces
Someone with prosopagnosia has difficulty with...
receptive field
The ______ of any neuron in the visual system is the area of the visual field that excites or inhibits it
Magnocellular neurons
The ability to detect movement better than color in our peripheral vision is largely due to ....
Blindsight
The ability to localize objects within an apparently blind visual field
False
The cornea is an adjustable structure in teh eye that focuses light. (True/False)
repeating stripes on a flag
V1 neurons would be most strongly activated by viewing ____
Primary visual cortex
Visual information from the lateral geniculate area goes to the...
dressing themselves
What is relatively easiest for someone who is motion blind?
Lateral inhibition
What is responsible for sharpening contrast at visual borders?
bar in a particular orientation
What is the shape of the receptive field to which a simple cell in the primary visual cortex responds?
Trouble describing the shapes of objects
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)?
to the lateral geniculate
Where does the optic nerve send most of its information?
Inferior temporal cortex
Which structure has the largest receptive fields and the greatest preferential sensitivity to highly complex visual patterns, such as faces?
Opponent-process theory
Which theory of color vision is best able to explain negative color images?
Tightly packed photoreceptors
Why does the fovea provide the clearest, most detailed visual information?
False
parvocellular cells respond strongly to moving stimuli and large overall patterns
feature detectors
respond to a particular feature of a stimulus
relative activity of short, medium, and long wavelengths
According to the trichromatic theory of color vision, the most important factor is determining the color we see is the ____.
True
Amacrine cells refine the input to ganglion cells, enabling them to respond specifically to shapes, movement, or other visual features.
False
An object's location, color, and movement are all processed in the same part of the visual cortex. (true or false)
Assymmetric curvature of lens
Astigmatism refers to...
parvocellular
Being able to detect fine details of a color painting would depend most on which type of ganglion cells?
trichromatic
The fact that all colors on older televisions were created by combining only three different colors of light supports which theory?
Every stimulation of the optic nerve is perceived as light
The law of specific energies states that ...
Every stimulation of the optic nerve is perceived as light
The law of specific energies states that...
Blind spot
The name of the point at which the optic nerve leaves the retina is called the...?
Ganglion cells
The optic nerve is composed of axons from which kind of cell?
receptive field
The point in space from which light strikes the receptor is called the...
to area V2
The primary visual cortex sends its information to ...
Have greater density of receptors than do humans on the top half of retina.
The retinas of predatory birds such as hawks ....
have a greater density of receptors than do humans on the top half of the retina
The retinas of predatory birds, such as hawks
False
The ventral stream of visual processing is important for identifying movement
ventral stream
The visual paths in the temporal cortex collectively are referred to as the ...?
photopigments
_____ are chemicals that release energy when struck by light
