PSYCH 260 Physio Psychology chapter 5

Which of the following would be easiest for someone who is motion blind?

Dressing themselves

The primary visual cortex sends its information ____.

to area V2

At the level of rods and cones, the ____ theory seems to fit best, while at the level of the bipolar cells, the ____ theory seems to fit best.

trichromatic; opponent process

According to the trichromatic theory of color vision ____.

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

Chemicals that release energy when struck by light are called ____.

photopigments

Youlanda has to wear glasses because her cornea doesn't adjust properly to focus the light onto the retina.

False

____ cells axons make up the optic nerve.

Ganglion

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

Horizontal cells

Suppose someone has a genetic defect that prevents the formation of horizontal cells in the retina. Which visual phenomenon is most likely to be impaired?

Lateral inhibition

To see something with her best vision, Lore turned to look directly at it. This was so she could use her foveal vision.

True

Laurence is able to drive his car within a lane since he can clearly see the lines and edge of the road. His nervous system enhances his ability to see edges by ______.

an illusion created in the retina called lateral inhibition

In order to prevent as much incorrect development as possible, infants with cataracts need to have surgical repair ____.

as early as possible

When Iris sees something that looks like a face, she has had activation of her _____.

fusiform gyrus

As a human, Lino is really good at detecting motion. This is because of his _____.

magnocellular neurons in the periphery

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

mirror-reversal

Once within the cerebral cortex, the magnocellular pathway continues, with a ventral branch sensitive to ____.

movement

V1 neurons would be most strongly activated by viewing ____.

repeating stripes on a flag

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

rods and cones; bipolar cells

Cortical neurons in the visual cortex of a kitten or a cat will lose the ability to respond to stimuli in one eye if the eye is sutured shut for ____.

the first month of life

According to the law of specific nerve energies, the brain tells the difference between one sensory modality and another by ____.

which neurons are active