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