Quiz 3 - The Three Illusions of Virtual Reality, Introduction to Virtual Reality https://www.coursera.org/learn/introduction-virtual-reality/exam/R9CfR/the-three-illusions-of-virtual-reality/attempt

quiz3.txt

See also http://www0.cs.ucl.ac.uk/teaching/VE/Slides/2009-2010/04_presence2.pdf

The Three Illusions of Virtual Reality
TOTAL POINTS 15
1.
Question 1
In an ideal VR system, we should simulate all five senses (vision, sound, smell, haptic, and taste). Which of these five senses are currently supported by a standard HMD system (for instance, HTC VIVE or Oculus with controllers)?
1 point


@ Vision


@ Sound


Smell


Haptic


Taste
2.
Question 2
Which of the following is true about haptic feedback?
1 point


@ There is no generalised haptic feedback system.


@ Haptic is specifically about touch.


@ Vibration gives the illusion of haptic feedback
3.
Question 3
What are the necessary conditions of plausibility illusion?
1 point


@ Events happening in VR is related personally to you.


@ The world responds to you


@ Credibility
4.
Question 4
We say system A is more immersive than system B when

1 point


we can simulate system A with system B


we cannot simulate system A with system B


@ we can use system A to simulate system B


we can use system B to simulate system A
5.
Question 5
What's the definition of place illusion?
1 point


It's a technical description of what a system can deliver.


@ It's the strong feeling of being in a virtual place despite the fact that you know you are not.
6.
Question 6
Which of the following support plausibility illusion?
1 point


An avatar in VR going through repetitive motions


@ In VR, as you walk in a room, all the characters turn their head to look at you


@ In VR, when you knock on the door, someone opens the door
7.
Question 7
Which of the following statements are true?
1 point


@ Immersion is a way to describe the VR system


@ The level of Immersion of the same system could differ from person to person


Place illusion depends on sensorimotor contingency
8.
Question 8
What's the definition of plausibility illusion?
1 point


Plausibility illusion describes the illusion when your natural sensorimotor contingency is supported by the system.


@ Plausibility illusion is the illusion that the events are happening
9.
Question 9
Which of the following statement is true?
1 point


Place illusion is cognitive


@ Plausibility illusion is perceptual


Experiences in HMD is more immersive than reading a book
10.
Question 10
Which of the following is right about place illusion and plausibility illusion?
1 point


@ If place illusion breaks, it could come back again.


If place illusion breaks, it would be very difficult to get it back again.


If plausibility illusion breaks, it could come back again.


@ If plausibility illusion breaks, it would be very difficult to get it back again.
11.
Question 11
In the real-life version of the rubber hand illusion, the brain tries to resolve conflicting perceptual signals and came up with a solution that the rubber hand is the real hand. During the process, which signal(s) overwrote which?
1 point


Vision and proprioception overwrote tactile


Vision and tactile overwrote proprioception


@ Tactile and proprioception overwrote vision
12.
Question 12
The rubber hand illusion in real-life is normally generated with [ ] synchrony. In virtual reality, we can also generate the illusion with [ ] synchrony
1 point


visual-proprioception; visual-motor


visual-motor; visual-proprioception


@ visual-tactile; visual-motor


visual-motor; visual-tactile
13.
Question 13
Which of the following could trigger embodiment illusion?
1 point


@ Putting an avatar where you expect your own body to be (visual-proprioception synchrony)


@ Visual-motor synchrony


@ Visual-tactile synchrony


Using an avatar in VR who looks similar to the user
14.
Question 14
Which of the following are needed to setup an embodiment VR lab, where users can have full-body ownership illusion?
1 point


@ CAVE


wide field-of-view HMD with head tracking


@ Body tracking solution (it can be a high-end camera system, or a Kinect, or a couple of hand trackers)
15.
Question 15
Which of the following are true about embodiment illusion in VR?
1 point

@ Having the shape of a child body in VR alters our perception of size.


Having the body of someone from a different racial group reduces our implicit racial bias.

@ Body ownership change attitude self