Physiological Psych. Module 5.2 Quiz

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

V1

Infants with cataracts need to have surgical repair ____.​

as early as possible

Astigmatism refers to the ____.​

asymmetric curvature of eyes

What is the shape of the receptive field to which a simple cell in the primary visual cortex responds?​

bar in a particular orientation

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

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

complex

In foveal vision, ____.​

each ganglion cell is excited by a single cone

____ respond to a particular feature of a stimulus.​

feature detectors

____ cells axons make up the optic nerve.​

ganglion

In the vertebrate retina, which cells are responsible for lateral inhibition?​

horizontal cells

What is responsible for sharpening contrast at visual borders?​

lateral inhibition

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

left eye

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

occipital lobe

The optic nerves from the right and left eye initially meet at the ____.​

optic chiasm

Being able to detect fine details of a color painting would depend most on which type of ganglion cells?​

parvocellular

The receptive field of a receptor is the ____.​

point in space from which light strikes the receptor

The ____ of any neuron in the visual system is the area of the visual field that excites or inhibits it.​

receptive field

V1 neurons would be most strongly activated by viewing ____.​

repeating stripes on a flag

In depth perception, different views are received by each eye, depending on the distance of the object being viewed. What is this called?​

retinal disparity

Stereoscopic depth perception requires the brain to detect ____.​

retinal disparity

Horizontal cells receive their input from ____, and they send output to ____.​

rods and cones; bipolar cells

The primary visual cortex is also known as the ____.​

striate cortex

The lateral geniculate nucleus is part of the ____.​

thalamus

In the visual system, the ____ and ____ constantly feed information back and forth.​

thalamus; cortex

The primary visual cortex sends its information ____.​

to area V2

Where does the optic nerve send most of its information?​

to the lateral geniculate

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)?​

trouble describing the shapes of objects

What is strabismus?​

​a failure of the two eyes to focus on the same thing at the same time

Parvocellular neurons most likely receive input from ____.​

​bipolar cells that receive input from cones

The one additional feature that hypercomplex cells have that complex cells do not is that hypercomplex cells ____.​

​have a strong inhibitory area at one end of its receptive field

Branches of the optic nerve go directly to what areas of the brain?​

​lateral geniculate and superior colliculus

The ability to detect movement better than color in our peripheral vision is largely due to ____.​

​magnocellular neurons in the periphery

Blindsight refers to ____.​

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

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

​whether it can respond equally to lines in more than one location


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