Question 1

Place your index finger on the far outside edge of one of your eyelids.Now apply gentle pres- sure to your eye (through the lid;do not touch your eye directly).As you apply pressure,you should see your environment tilt in correspondence with your eye's movement.(A)How would you explain the perception of movement as your eye moves? (B)Does this demonstration sup- port the corollary discharge signal as the stabilizing mechanism during eye movement?

Accepted Answer

The answer of Place your index finger on the far...

Question 2

The posterior superior temporal sulcus (STSp)
A)responds to any motion.
B)is associated with the perception of biological motion.
C)responds equally to a point-light walker display and to a randomly moving dot display.

Accepted Answer

The posterior superior temporal sulcus (STSp) is specifically associated with the perception of biological motion, such as the movement of animals or humans, as opposed to non-biological motion such as random dot displays.

Question 3

Hermione's soccer team is practicing the corner kick.Her teammate kicks the ball high in the air,and Hermione tries to strike the ball with her head and direct it to the goal.What visual strategy,also used to catch flies in baseball,can Hermione apply to ensure she makes contact with the ball?

Accepted Answer

The answer of Hermione's soccer team is practicing the corner...

Question 4

The region of the posterior parietal lobe that is involved in grasping movements is the
A)medial intraparietal area.
B)lateral intraparietal area.
C)anterior intraparietal area.

Accepted Answer

The anterior intraparietal area (AIP) is involved in the planning and execution of grasping movements, playing a crucial role in the transformation of object features into hand movements.

Question 5

Briefly describe the study conducted by Newsome et al.(1989)investigating the role of MT neurons in motion perception.Who were the subjects? What were the stimuli? What two mea- sures were recorded? Summarize their findings.

Accepted Answer

The answer of Briefly describe the study conducted by Newsome...

Question 6

Lakshmi is standing,facing forward,on a crowded train that has come to a station and stopped.There is also a stopped train on an adjacent track.Suddenly,the train on the adjacent track begins to move backward (relative to Lakshmi's train).When Lakshmi sees the adjacent train,what is she likely to perceive,and how will she physically respond to what she perceives?

Accepted Answer

The answer of Lakshmi is standing,facing forward,on a crowded train...

Question 7

Neurons in area MT are tuned to respond to different
A)colors.
B)shapes.
C)directions of motion.

Accepted Answer

Neurons in area MT, also known as middle temporal area, are specialized to detect motion and are direction selective. They are not tuned to colors or shapes.

Question 8

Newsome et al.(1989)used the coherence of motion technique to study monkeys' perceptions of motion.When looking at the results of single-cell recordings from area MT they found that with a coherence level of its response to motion in the opposite direction.
A)12.8% the neuron's response to motion in the preferred direction was clearly greater than
B)12.8% the neuron's response to motion in the preferred direction was the same as
C)0.8% the neuron's response to motion in the preferred direction was clearly greater than

Accepted Answer

The correct answer is based on the findings of Newsome et al. (1989), who demonstrated that at a coherence level of 12.8%, neurons in area MT of monkeys showed a significantly greater response to motion in their preferred direction compared to motion in the opposite direction. This research highlighted the sensitivity of MT neurons to the direction of motion, contributing to our understanding of how the brain processes visual motion information.

Question 9

A rising fastball
A)occurs only when a pitch actually exceeds 100 mph.
B)is an illusion caused by the lack of spin with a knuckleball.
C)is an illusion caused by the batters incorrect underestimation of the speed of the pitch.

Accepted Answer

A rising fastball is not actually rising, but it appears to be rising to the batter because they are underestimating the speed of the pitch. The ball is actually following a straight path, but the batter's brain perceives it as rising because they expect it to drop due to gravity.

Question 10

A random dot kinematogram is a display in which a grid is filled with tiny,randomly placed black and white square dots in such a way that shape can be determined only with accompany- ing changes in
A)depth changes
B)brightness
C)relative motion

Accepted Answer

Random dot kinematograms are designed to test the ability of the visual system to detect motion through differences in the relative motion of dots. This is because the dots themselves have no inherent shape or form, and can only be perceived as such when they are in motion or when they change relative to one another. Therefore, the correct answer is C, which is the only option that describes a difference in motion.

Question 11

Movshon et al.(1985)studied "plaid" displays,using the combination-of-motions effect with two superimposed sets of moving stripes;they found that is consistent with the idea that MT neurons can combine the responses of V1 neurons and/or other MT neurons.
A)the activity of component cells in area MT
B)the activity of pattern cells in area MT
C)the activity of pattern cells in area V1

Accepted Answer

Movshon et al. (1985) found evidence supporting the activity of pattern cells in area MT, which are believed to integrate the motion information from V1 neurons and/or other MT neurons to perceive complex patterns like plaids.

Question 12

Beckers and Zeki (1995)used transcranial stimulation to
A)produce the illusion of motion.
B)temporarily deactivate area MT during the presentation of a moving-dot stimulus.
C)temporarily deactivate area V1 during the presentation of a moving-dot stimulus.

Accepted Answer

The answer of Beckers and Zeki (1995)used transcranial stimulation to
A)produce...

Question 13

Recent films such as Avatar and The Hobbit have blended human acting with computer ani- mation.Using the "motion-capture" technique,actors perform while wearing suits that have strategically placed spots (i.e,at the joints).The recorded performance is later translated into animation by maintaining the key spatial and temporal relationships from the original to the animation.How is this technique related to the study of perception from biological motion?

Accepted Answer

The answer of Recent films such as Avatar and The...

Question 14

A rising fastball
A)occurs only when a pitch actually exceeds 100 mph.
B)is an illusion caused by the batter's incorrect estimation of the distance between home plate and the pitcher's mound.
C)is an illusion caused by the batter's incorrect underestimation of the speed of the pitch.

Accepted Answer

A rising fastball is not actually rising. It appears to rise because of the batter's incorrect underestimation of the speed of the pitch. The batter expects the ball to drop due to gravity, but the extra backspin on the fastball causes it to stay on a more level plane, giving the appearance of rising.

Question 15

The corollary discharge signal
A)comes from the superior colliculus and informs the brain about the state of the muscles con- trolling eye movements.
B)comes from the superior colliculus and informs the brain about upcoming eye movements.
C)comes from the extraocular muscles and informs the brain about the state of the muscles controlling eye movements.

Accepted Answer

The corollary discharge signal comes from the superior colliculus and informs the brain about upcoming eye movements. It acts as a copy of the motor command that is sent to the extraocular muscles, allowing the brain to predict the sensory consequences of the movement before it occurs. This helps to maintain a stable visual perception even during eye movements.

Question 16

Mark is sitting in a restaurant when his server brings his glass of wine to the table.He moves his eyes to the glass and then reaches for and grasps it.What cortical areas are involved in the (visual)guidance of these three tasks? What larger visual pathway are these structures part of?

Accepted Answer

The answer of Mark is sitting in a restaurant when...

Question 17

The eye movements that you use when you read are called eye movements.
A)saccadic
B)smooth pursuit
C)vergence

Accepted Answer

Saccadic eye movements refer to the rapid jumps made by the eyes from one fixation point to another, which are necessary when reading as your eyes move across a line of text. Smooth pursuit eye movements are used to track moving objects and convergence eye movements are used to focus on objects at different distances, but neither are as relevant to reading as saccadic eye movements.

Question 18

For safety reasons construction sites are usually surrounded by high wooden boards.To gain a glimpse at the activity inside,onlookers may poke a small hole through a board.Explain how view- ing the construction site through a one-inch hole leads to the aperture problem described in the text.

Accepted Answer

The answer of For safety reasons construction sites are usually...

Question 19

The neural circuit to explain motion aftereffects requires that either the M_L or M_R neuron A)be stimulated. B)be stimulated before the other. C)become fatigued.

Accepted Answer

The motion aftereffect occurs when the neurons that respond to motion become fatigued, causing a perception of motion in the opposite direction. Therefore, the correct choice is C - one of the neurons involved in the neural circuit (either M_L or M_R) must become fatigued for the motion aftereffect to occur.

Quiz 7: Perceiving Motion and Perception for Action

The posterior superior temporal sulcus (STSp)

Hermione's soccer team is practicing the corner kick.Her teammate kicks the ball high in the air,and Hermione tries to strike the ball with her head and direct it to the goal.What visual strategy,also used to catch flies in baseball,can Hermione apply to ensure she makes contact with the ball?

The region of the posterior parietal lobe that is involved in grasping movements is the

Briefly describe the study conducted by Newsome et al.(1989)investigating the role of MT neurons in motion perception.Who were the subjects? What were the stimuli? What two mea- sures were recorded? Summarize their findings.

Neurons in area MT are tuned to respond to different

Newsome et al.(1989) used the coherence of motion technique to study monkeys' perceptions of motion.When looking at the results of single-cell recordings from area MT they found that with a coherence level of its response to motion in the opposite direction.

A rising fastball

A random dot kinematogram is a display in which a grid is filled with tiny,randomly placed black and white square dots in such a way that shape can be determined only with accompany- ing changes in

Movshon et al.(1985) studied "plaid" displays,using the combination-of-motions effect with two superimposed sets of moving stripes;they found that is consistent with the idea that MT neurons can combine the responses of V1 neurons and/or other MT neurons.

Beckers and Zeki (1995) used transcranial stimulation to

A rising fastball

The corollary discharge signal

Mark is sitting in a restaurant when his server brings his glass of wine to the table.He moves his eyes to the glass and then reaches for and grasps it.What cortical areas are involved in the (visual)guidance of these three tasks? What larger visual pathway are these structures part of?

The eye movements that you use when you read are called eye movements.

For safety reasons construction sites are usually surrounded by high wooden boards.To gain a glimpse at the activity inside,onlookers may poke a small hole through a board.Explain how view- ing the construction site through a one-inch hole leads to the aperture problem described in the text.

The neural circuit to explain motion aftereffects requires that either the M_L or M_R neuron

Quiz 7: Perceiving Motion and Perception for Action

The posterior superior temporal sulcus (STSp)

Hermione's soccer team is practicing the corner kick.Her teammate kicks the ball high in the air,and Hermione tries to strike the ball with her head and direct it to the goal.What visual strategy,also used to catch flies in baseball,can Hermione apply to ensure she makes contact with the ball?

The region of the posterior parietal lobe that is involved in grasping movements is the

Briefly describe the study conducted by Newsome et al.(1989)investigating the role of MT neurons in motion perception.Who were the subjects? What were the stimuli? What two mea- sures were recorded? Summarize their findings.

Neurons in area MT are tuned to respond to different

Newsome et al.(1989) used the coherence of motion technique to study monkeys' perceptions of motion.When looking at the results of single-cell recordings from area MT they found that with a coherence level of its response to motion in the opposite direction.

A rising fastball

A random dot kinematogram is a display in which a grid is filled with tiny,randomly placed black and white square dots in such a way that shape can be determined only with accompany- ing changes in

Movshon et al.(1985) studied "plaid" displays,using the combination-of-motions effect with two superimposed sets of moving stripes;they found that is consistent with the idea that MT neurons can combine the responses of V1 neurons and/or other MT neurons.

Beckers and Zeki (1995) used transcranial stimulation to

A rising fastball

The corollary discharge signal

Mark is sitting in a restaurant when his server brings his glass of wine to the table.He moves his eyes to the glass and then reaches for and grasps it.What cortical areas are involved in the (visual)guidance of these three tasks? What larger visual pathway are these structures part of?

The eye movements that you use when you read are called eye movements.

For safety reasons construction sites are usually surrounded by high wooden boards.To gain a glimpse at the activity inside,onlookers may poke a small hole through a board.Explain how view- ing the construction site through a one-inch hole leads to the aperture problem described in the text.

The neural circuit to explain motion aftereffects requires that either the ML or MR neuron

The neural circuit to explain motion aftereffects requires that either the M_L or M_R neuron