Experiment Procedure

The recording of EEG and ECG data took place during the resting states (i.e., eyes closed and eyes open) and the visual stimulation sessions (i.e.,

Table 6.2 Description of video clips in order of presentation

S. No.

Title of clip

Time (min)

Details

1

A Christmas Carol (Disney, 2009)

4.25

In this clip, Scrooge met the Ghost of Christmas Past. They flew together and Scrooge was brought back to his own past as a child.

2

The Nightmare Before Christmas (Disney, 2011)

2.20

This clip shows Jack sharing his ideas about the Christmas celebration with the Halloween Town residents. In a church hall, the monsters and ghosts were singing.

3

Alice in

Wonderland (Disney, 2010)

2.11

Alice ran away to catch a white rabbit and reached a place named Wonderland. There she found the Hatter; later, the Red Queen’s soldier seized him. Alice planned to escape and struggled to release the Hatter, so she presented herself as a guest and went to the Red Queen’s castle.

4

Toy Story 3 (Disney Pixar, 2010)

3.11

This clip shows Andy when he was little playing with his toys (a flashback). All of his toys were mistakenly placed in the garbage when he went to college. All the toys escaped and left Andy’s house and reached the Sunnyside nursery.

5

G-Force

  • (Disney,
  • 2009)

3.28

In this scene, a race between the G-Force team and the FBI agents is presented. It is presented that one of the FBI cars became stuck while the other crashed because of fireworks during the chase.

6

3D Sony Aquarium (Sony PLC, 2010)

4.13

This clips shows a scene of a school of swimming fish and a bear diving into the aquarium.

2D and 3D). The recording begins with the eyes-closed session. The participants were instructed to sit as relaxed as they could while they were awake. Then the participants were instructed to focus on a black fixation point displayed at the center of a white screen so that the gaze was fixed during eyes-open recording. The eyes-closed session was conducted only once, i.e., at the very beginning of the experiment, while the eyes-open sessions were done prior to each visual stimulation session.

EEG recording flow diagram. (A) 3D active first group. (B) 3D passive first group

Figure 6.1 EEG recording flow diagram. (A) 3D active first group. (B) 3D passive first group.

As mentioned earlier, the visual stimulation session contained three conditions: 2D, 3DA, and 3DP. The stereoscopic 3D system requires viewing glasses, hence all participants wore a set of passive polarized glasses and active shutter glasses during 3DP and 3DA modes, respectively. However, no glasses were needed for the 2D viewing. The viewing glasses are only required during the 3D viewing modes, therefore the glasses were removed during the resting conditions and the breaks between sessions.

In addition, the participants were also instructed to minimize any physical movement as much as possible. After each recording session, they were given a 5-10 minute break, and no recording was involved during this period to allow them to rest; this also reduced the potential fatigue and drowsiness effect. However, during this time, they were asked to report their viewing experience by filling up the simulator sickness questionnaire (SSQ) (Appendix 5B). Prior to the viewing in other modes, the participants were required to perform the eyes-open test again to remove the transient effects that may be induced by the various video clips in the previous viewing sessions.

 
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