Chapter 5

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An objects location, color, and movement are all processed in the same part of the visual cortex

FALSE

the coding of visual information in your brain results in exact duplicate of the object's shape on the surface of the cortex

FALSE

which statement characterizes the fovea

It has the greatest perception of detail.

lateral inhibition is the reduction of activity in one neuron by activity in neighboring neurons

TRUE

the retinex theory accounts for the principle of color constancy

TRUE

the primary visual cortex sends its information to

V2

Night-active species are more likely than day-active species to have

a greater rod to cone ratio

parvocelluar neurons most likely receive input from

bipolar cells that receive input from cones

Once within the cerebral cortex, a mixed pathway of magnocellular and parvocellular cells is important for ​

brightness and color

in foveal vision

each ganglion cell is excited by a single cone

the optic nerve is composed of axons form which kind of cell

ganglion cells

why does the fovea provide the clearest most detailed information

it has tightly packed receptors

the most common form of color deficiency is due to

long and medium wavelength cones making the same photopigment

Axons from the lateral geniculate extend to which area of the cerebral cortex

occipital lobe

According to the trichromatic theory of color vision

our perception of color depends on the relative activity of three types of cones

light enters the eye through and opening in the center of the iris called the

pupil

the _____ of any neuron in the visual system is the area of the visual field that excites or inhibits it

receptive field

color constancy is the ability to

recognize the color of an object despite changes in lighting

A person with visual agnosia is unable to

recognize visual objects

in addition to having difficulty recognizing faces, people with prosopagnosia may have difficulty

recognizing different kinds of plants and animals

Someone with prosopagnosia has difficulty with ____

recognizing faces

which theory can best explain why people that are wearing yellow-colored glasses can still identify the color of a green apple

retinex theory

horizontal cells receive their input from____ and they send output to ______

rods and cones, bipolar cells

in comparison to the rods, cones are more

sensitive to detail

When cells in the middle temporal cortex respond to visual stimuli, their response depends mostly on the ____.​

speed and direction of movement

V1 neurons would be most strongly activated by viewing ​

stripes on a flag

the lateral geniculate nucleus is apart of the

thalamus

in the visual system, the _____and ______ constantly feed information back and forth

thalamus, cortex

Blindsight refers to

the ability to localize visual objects within an apparently blind visual field

Which cell responds most strongly to a stimulus moving perpendicular to its axis​

complex

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

complex

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

mirror-reversal

Cutting the left optic nerve in front of the optic chiasm would result in blindness in ____

the left eye

Rods are to ____ as cones are to ____.

the periphery; the fovea


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