Biopsych Ch 7 Quiz

Brightness detector ganglion cells receive their input chiefly from _______ cones.

L and M

The cortical region whose cells respond preferentially to motion is

V5

The sharpness with which an image can be resolved by the visual system is called

acuity

Current visual research supports which of the following hypotheses?

both trichromatic and opponent-process

accommodation is controlled by which component of the eye

ciliary muscles

The neural signals that result from the processing of visual input in the retina converge on the _______ cells.

ganglion

Stimulation of a photoreceptor results in the generation of _______ in the receptor.

graded hyper polarization

Specialized ganglion cells that detect darkness are

inhibited by both M and L cones

The optic chiasm

provides each hemisphere visual info

Optic ataxia refers to difficulty with which of the following?

reaching and grasping objects

The rods of the retina are the main receptors of the _______ visual system.

scotopic

Which approach to understanding vision has provided insights into how complex forms are processed?

spatial-frequency model

An off-center/on-surround cell responds most strongly when

the entire surround is illuminated

Myopia is a condition that develops when

the eyeball is too long

Lateral inhibition is a phenomenon

whereby contrast is produced at the edges of regions