Motion

Which term best describes the motion aftereffect (MAE)?

The perception of a stationary object as moving after exposure to a moving object

What does the existence of the motion aftereffect imply about the visual processing system?

The presence of an opponent process system similar to color vision

How does the encoding of motion differ from the encoding of color in the visual system?

Color involves changes in space and time, while motion is encoded at contrasting cone responses

Which of the following best describes how motion is processed in the visual system?

Motion is processed as visual attribute apart of a set of interconnected processes. Signup and view all the answers

In terms of spatial encoding, how does motion differ from color?

Motion is not encoded at discrete points in space, while color is. Signup and view all the answers

What is the fundamental principle behind building a motion detector in the context of neural circuits?

Incorporating a delay in the circuit to perceive movement. Signup and view all the answers

Which of the following is the role of two adjacent receptors in building a motion detector?

They provide a foundation for distinguishing motion. Signup and view all the answers

Why is it necessary to incorporate a delay in a motion detector circuit?

To allow something to be perceived as movement rather than two separate objects. Signup and view all the answers

How does the length of the delay in a motion detector circuit affect its function?

A longer delay makes it a slow motion detector. Signup and view all the answers

Which of the following is a key component necessary for a motion detector?

Two adjacent receptors and a delay circuit. Signup and view all the answers

What is the specific type of circuit referred to in the context of motion detection that includes parallel input pathways, delay elements, and multipliers?

Reichardt detector Signup and view all the answers

How do the parallel input pathways in a Reichardt detector receive visual information?

They receive input from neighboring photoreceptors or sensors. Signup and view all the answers

Which element in a Reichardt detector simulates the time it takes for visual information to propagate through the neural pathways?

a. The delay element Signup and view all the answers

What is the function of the multiplier in a Reichardt detector?

d. It multiplies the delayed signals from one pathway with the signals from the other pathway Signup and view all the answers

How can you increase the area covered by a motion detector using Reichardt detectors?

d. By stringing several motion detector circuits together Signup and view all the answers

Which of the following best describes apparent motion?

The illusory impression of smooth motion resulting from the rapid alternation of objects that appear in different locations in rapid succession Signup and view all the answers

Who first demonstrated apparent motion in 1875?

Sigmund Exner Signup and view all the answers

What does apparent motion demonstrate about motion detection circuits?

They do not need real motion to operate Signup and view all the answers

Which of the following is related to the concept of frame rate?

The smoothness of motion Signup and view all the answers

How does a higher frame rate (FPS) affect the appearance of motion?

Higher FPS makes motion appear smooth Signup and view all the answers

How is frame rate described?

In frequency, or Hertz (Hz) Signup and view all the answers

Which of the following best describes the correspondence problem in the context of vision?

It is the difficulty in matching features across frames when objects are in motion. Signup and view all the answers

How is the visual system wired in relation to detecting motion directions?

It is wired to detect all motion directions. Signup and view all the answers

What is the aperture problem in visual perception?

It refers to the ambiguity in the direction of motion when viewing a moving object through an aperture. Signup and view all the answers

Which of the following describes what happens to the object's motion within a single receptive field?

The object's motion direction becomes ambiguous. Signup and view all the answers

How does integrating input across Reichert detectors help with motion perception?

It results in a global motion detector and a true answer. Signup and view all the answers

How does the visual system address the challenge of the aperture problem to correctly perceive the overall motion of objects?

By combining motion information from several local apertures or receptive fields. Signup and view all the answers

Which of the following best describes how the visual system determines the true global motion direction?

c. By selecting the motion direction that is the same in all apertures. Signup and view all the answers