Psych: Quiz 5

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

False

The cornea is an adjustable structure in the eye that focuses light.

False

________ are chemicals that release energy when struck by light.

Photopigments

Which statement characterizes the fovea?

The fovea has the greatest perception of detail

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

True

Photopigments are stable in the dark.

True

In the human retina, messages go from receptors at the back of the eye to ________.

bipolar cells

Which receptors are responsible for the perception of color?

cones only

Light enters the eye through an opening in the center of the iris called the ____________.

cornea

The law of specific nerve energies state that_________.

every stimulation of the optic nerve is perceived as light.

Once within the cerebral cortex, the magnocellular continues, with a dorsal branch important

integrating vision with action

The enhancement of contrast at the edge of an object is the result of _________.

lateral inhibition in the retina

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

left eye

Which theory of color vision is best able to explain negative color afterimages?

opponent - process theory

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

parvocellular

Difficulty distinguishing between ____ and ____ is the most common form of color vision deficiency.

red and green

Peripheral vision mainly depends upon ____________.

rods

The lateral geniculate nucleus is part of the _______.

thalamus

Damage to the ventral stream may interfere with ___________.

the ability to describe the shape or size of an object

Light from the right half of the world strikes which part of the retina?

the left half