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please help with all!!! 41)?_______ is the differences between…
please help with all!!!
41)?_______ is the differences between the two retinal images of the same scene. It is the basis of stereopsis.
??(a) Binocular disparity
? ?(b) Depth perception
??(c) Stereopsis
??(d) Aplopia.
42)?In normal humans, color space has 3 dimensions (3 primaries can match all colors) because ?(a) our perceptions are related to objects in the real world.
?(b) each retina is a two-dimensional representation of the world, but we have two eyes.
?(c) the retina contains three types of cones, or functions as if this were true.
?(e) None of the above.
43)?The spectral sensitivity of a single cone depends on
?(a) the spectral absorption curve of the photopigment it contains.
?(b) whether it is light or dark adapted.
?(c) whether it is part of the center or surround of a receptive field.
?(d) the wavelengths of the lights in a trichromatic mixture.
44) ?The difference between crossed disparity and uncrossed disparity is that crossed disparity involves objects that are _______ the plane of fixation, while uncrossed disparity involves objects that are _______ the plane of fixation.
?(a) below; above
?(b) above; below
?(c) in front of; behind
?(d) to the left of; to the right of
?
45)?Two people stand in the corners of the Ames trapezoidal room; when they are viewed monocularly, the one that appears much taller is perceived as being
?(a) much closer and hence seems taller.
?(b) much farther and hence seems taller.
?(c) at the same distance as the other person even though the retinal image of him is larger.
?(d) taller because the room appears to be distorted.
46) ?The problem of figuring out which bit of the image in the left eye should be matched with which bit of image in the right eye is known as the
?(a) unit-cyclopean problem.
?(b) correspondence problem.
?(c) motion paradox,
?(d) disparity paradox.
?
47)?Pairs of stimuli that can be fused to give a stereoscopic impression of depth
?(a) must have contours identified as the outlines of objects.
?(b) must be astigmatic.
?(c) must be looked at with only one eye.
?(d) stimulate slightly disparate retinal regions when each eye views one member of the pair.
48)?When an edge of an object moves behind an aperture, the perceived direction of the movement is ambiguous because
?(a) motion specific neurons do not use lateral inhibition.
?(b) autokinetic motion is not perceived under most viewing conditions.
?(c) the receptive field of a motion detecting neuron is stimulated by only part of the edge and will respond to a variety of directions of motion of the object.
?(d) coordination of the eye-head system requires a view of the entire visual field.
49) ?The fact that a strong motion aftereffect is obtained when one eye is adapted and the other tested suggests that:
?(a) the motion aftereffect works better with one eye.
?(b) adaptation is responsible for motion aftereffect.
?(c) testing the other eye increases the chance of seeing a motion aftereffect.
?(d) the effect reflects activities of neurons in a part of the visual system where information from both eyes is combined.
50) ?The _______ is important in initiating and guiding eye movements.
?(a) lateral rectus
?(b) caudal midbrain
?(c) pons
?(d) superior colliculus
