Question 1

dmax in random dot kinematograms varies with:

Accepted Answer

A)  Dot density 
B)  Stimulus area 
C)  Stimulus contrast 
D)  Monocular vs binocular viewing 
A)  Dot density 
B)  Stimulus area 
C)  Stimulus contrast 
D)  Monocular vs binocular viewing

Question 2

Leibowitz and Harvey's study suggested that the process underlying size constancy is:

Accepted Answer

A)  Automatic 
B)  Subject to large random variation 
C)  Fast 
D)  Flexible 
A)  Automatic 
B)  Subject to large random variation 
C)  Fast 
D)  Flexible

Question 3

The progressive loss of sensitivity to gratings as spatial frequency is decreased below about 5 c deg−1 is probably due to:

Accepted Answer

A)  Lateral inhibition 
B)  Spatial summation 
C)  Spatial frequency adaptation 
D)  Eye movements 
A)  Lateral inhibition 
B)  Spatial summation 
C)  Spatial frequency adaptation 
D)  Eye movements

Question 4

Which stimulus manipulation did Braddick find to cause loss of perception of motion in random dot kinematograms?

Accepted Answer

A)  Reducing the contrast 
B)  Presenting the two frames dichoptically 
C)  Increasing dot size 
D)  Increasing stimulus area 
A)  Reducing the contrast 
B)  Presenting the two frames dichoptically 
C)  Increasing dot size 
D)  Increasing stimulus area

Question 5

From their studies of the perception of moving gratings from which the fundamental had been removed, Georgeson and Shackleton suggested that:

Accepted Answer

A)  Monocular motion detectors are sluggish 
B)  Binocular motion detectors track features 
C)  Monocular motion detectors track features 
D)  Binocular motion detectors respond to first-order motion 
A)  Monocular motion detectors are sluggish 
B)  Binocular motion detectors track features 
C)  Monocular motion detectors track features 
D)  Binocular motion detectors respond to first-order motion

Question 6

What governs whether we see motion transparency in two superimposed patterns moving in opposite directions?

Accepted Answer

Motion transparency occurs when we perce

Question 7

What is a spatial contrast sensitivity function, and how is its shape to be explained?

Accepted Answer

The spatial contrast sensitivity functio

Question 8

According to Fourier theory, the frequency component of a square wave with the highest amplitude is the:

Accepted Answer

A)  Third harmonic 
B)  Fundamental 
C)  Fifth harmonic 
D)  Residual 
A)  Third harmonic 
B)  Fundamental 
C)  Fifth harmonic 
D)  Residual

Question 9

Which of these phenomena suggests interactions between spatial channels?

Accepted Answer

A)  Threshold elevation of gratings similar in spatial frequency to the adapting grating 
B)  The simultaneous spatial frequency illusion 
C)  The shape of the contrast sensitivity function 
D)  None of these 
A)  Threshold elevation of gratings similar in spatial frequency to the adapting grating 
B)  The simultaneous spatial frequency illusion 
C)  The shape of the contrast sensitivity function 
D)  None of these

Question 10

When they used a forced choice test procedure, Nachmias et al. found, after adaptation to a square-wave grating:

Accepted Answer

A)  Threshold elevation of a sine-wave grating of a frequency of the fifth harmonic of the adaptor 
B)  No threshold elevation of a sine-wave grating of a frequency of the fundamental of the adaptor 
C)  No threshold elevation of a sine-wave grating of a frequency of the third harmonic of the adaptor 
D)  Threshold elevation of a sine-wave grating of a frequency of one-third of the fundamental frequency of the adaptor 
A)  Threshold elevation of a sine-wave grating of a frequency of the fifth harmonic of the adaptor 
B)  No threshold elevation of a sine-wave grating of a frequency of the fundamental of the adaptor 
C)  No threshold elevation of a sine-wave grating of a frequency of the third harmonic of the adaptor 
D)  Threshold elevation of a sine-wave grating of a frequency of one-third of the fundamental frequency of the adaptor

Question 11

How are edges located in human vision?

Accepted Answer

Edges in human vision are detected throu

Question 12

How can the apparent motion of stationary stimuli be explained?

Accepted Answer

The apparent motion of stationary stimul

Question 13

The minimum stimulus change of a first-order moving pattern which can be detected in a range of conditions corresponds to:

Accepted Answer

A)  A minimum velocity 
B)  A minimum change of contrast 
C)  A minimum displacement 
D)  A minimum change in depth 
A)  A minimum velocity 
B)  A minimum change of contrast 
C)  A minimum displacement 
D)  A minimum change in depth

Question 14

Squaring is a useful procedure in modelling because it:

Accepted Answer

A)  Expands the range of values to be processed 
B)  Removes very small numbers from the range of values to be processed 
C)  Converts negative numbers to positive numbers 
D)  Mimics the activity of nerve cells 
A)  Expands the range of values to be processed 
B)  Removes very small numbers from the range of values to be processed 
C)  Converts negative numbers to positive numbers 
D)  Mimics the activity of nerve cells

Question 15

Motion capture is the:

Accepted Answer

A)  Breakdown in apparent motion in random dot kinematograms as dmax is increased 
B)  Breakdown in motion transparency as the vertical displacement of dots in horizontally moving patterns is reduced 
C)  Action of neurons in V5/MT on inputs from V3 
D)  Induction of motion in the same direction of stationary regions by moving regions of a display 
A)  Breakdown in apparent motion in random dot kinematograms as dmax is increased 
B)  Breakdown in motion transparency as the vertical displacement of dots in horizontally moving patterns is reduced 
C)  Action of neurons in V5/MT on inputs from V3 
D)  Induction of motion in the same direction of stationary regions by moving regions of a display

d_max in random dot kinematograms varies with:

Leibowitz and Harvey's study suggested that the process underlying size constancy is:

The progressive loss of sensitivity to gratings as spatial frequency is decreased below about 5 c deg⁻¹is probably due to:

Which stimulus manipulation did Braddick find to cause loss of perception of motion in random dot kinematograms?

From their studies of the perception of moving gratings from which the fundamental had been removed, Georgeson and Shackleton suggested that:

What governs whether we see motion transparency in two superimposed patterns moving in opposite directions?

What is a spatial contrast sensitivity function, and how is its shape to be explained?

According to Fourier theory, the frequency component of a square wave with the highest amplitude is the:

Which of these phenomena suggests interactions between spatial channels?

When they used a forced choice test procedure, Nachmias et al. found, after adaptation to a square-wave grating:

How are edges located in human vision?

How can the apparent motion of stationary stimuli be explained?

The minimum stimulus change of a first-order moving pattern which can be detected in a range of conditions corresponds to:

Squaring is a useful procedure in modelling because it:

Motion capture is the:

The Nature of Perception, and Some Ways of Investigating It

Research Methods in Perception

Mechanisms of Early and Middle Visual Processing

Seeing in Colour

Hearing

Taste and Smell

Touch and Pain

Vestibular and Proprioceptive Systems

Visual and Auditory Localisation

Perception and Action

Eye Movements and Perception of Natural Scenes

Recognising Faces

Attention and Awareness

Changes in Perception Through the Life-Span

Pathologies of Perception

Filters

Exam 5: Seeing Pattern and Motion

dmax in random dot kinematograms varies with:

Leibowitz and Harvey's study suggested that the process underlying size constancy is:

The progressive loss of sensitivity to gratings as spatial frequency is decreased below about 5 c deg−1 is probably due to:

Which stimulus manipulation did Braddick find to cause loss of perception of motion in random dot kinematograms?

From their studies of the perception of moving gratings from which the fundamental had been removed, Georgeson and Shackleton suggested that:

What governs whether we see motion transparency in two superimposed patterns moving in opposite directions?

What is a spatial contrast sensitivity function, and how is its shape to be explained?

According to Fourier theory, the frequency component of a square wave with the highest amplitude is the:

Which of these phenomena suggests interactions between spatial channels?

When they used a forced choice test procedure, Nachmias et al. found, after adaptation to a square-wave grating:

How are edges located in human vision?

How can the apparent motion of stationary stimuli be explained?

The minimum stimulus change of a first-order moving pattern which can be detected in a range of conditions corresponds to:

Squaring is a useful procedure in modelling because it:

Motion capture is the:

The Nature of Perception, and Some Ways of Investigating It

Research Methods in Perception

Mechanisms of Early and Middle Visual Processing

Seeing in Colour

Hearing

Taste and Smell

Touch and Pain

Vestibular and Proprioceptive Systems

Visual and Auditory Localisation

Perception and Action

Eye Movements and Perception of Natural Scenes

Recognising Faces

Attention and Awareness

Changes in Perception Through the Life-Span

Pathologies of Perception

Filters

d_max in random dot kinematograms varies with:

The progressive loss of sensitivity to gratings as spatial frequency is decreased below about 5 c deg⁻¹is probably due to: