Final Exam Flashcards
Spring 2019
The perception of motion is important:
in enhancing perception of form and to the observers safety
_______ is the illusion of motion of a stationary object that occurs after prolonged exposure to a movie object
motion aftereffect
The problem faced by the motion detection system of knowing which feature in time frame 2 corresponds to a particular motion in time frame 1 is known as the
correspondence problem
When all that can be seen of people moving in the dark is lights attatched to their joints, which of the following statements is NOT true?
Complex deductive thought processes are required in order to interpret the motion
The perception of biological motion from just a few moving points of light is an example of
structure from motion
People who develop Alzheimers Disease generally have trouble using which of the following cues?
optic flow
A key brain area in the processing of visual motion is:
the MT/V5 region
If you observe motion in one particular direction for several minutes you will be:
less sensitive to movement in the same direction
The perception of movement in certain lighted advertising signs is an example of:
apparent/Phi motion
Vestibular nystagmus eye movements are characterized by
rapid “flicking” of the eyes back and forth
The ____ is an important brain structure in.. movements
superior colliculus
The brain solves the aperture problem in motion perception by:
1) looking at signals from a large population of motion-selective neurons in parallel
2) using neural convergence to create large receptive fields for neurons involved with higher order motion processing
The brain area MST is specialized for the perception of _______ and receives most of its info from area _____
rotational/expansion motion; MT
Attention to a specific portion of the visual field is called:
spatial attention
an inability to notice the appearance of, or changes to, unattended objects is called:
change blindness
three ways that the responses of an individual neuron could be changed by attention are enhancement, sharper tuning, AND
altered tuning
All major theories of selective attention assume attention is
limited in capacity
The “early selection” (or filter) theory of attention states that:
- attention is limited in capacity
- selection occurs based on the physical properties of the stimulus
- irrelevant info is completely filtered prior to perceptual analysis
During response enhancement, a neuron responding to an attended stimulus might give a ________ response
bigger
What areas of the brain is NOT involved with executive (top-down) control of attention?
medial occipital lobe
the “line cancellation test” is used to asses
contralateral neglect
patients with ______ damage have problems directing attention to the left and perceiving objects and space (on the let) in all sensory modalities
right parietal lobe
SOA refers to
stimulus onset asynchrony
when measuring reaction time, we measure the
time form the onset of a stimulus to a response
in visual search studies, a _______ is any stimulus other than the target.
distractor
In a probe detection experiment, an invalid cue is
a cue that incorrectly signals the location of the target
the movements of a stereo speaker producing a loud sound would have a
high amplitude
in a _______ task, the target is defined by the presence of more than one feature, or attribute, such as a salient color, orientation, or shape
conjunction search
the number of cycles a sound wave completes in one second is termed:
frequency
in the middle ear, sound vibrations are transferred from the ______ to the ________
ossicles; oval window
What is NOT found in the organ of Corti
tympanic canal
