Self-Report Measures

In this experiment, the participants filled out the feedback form and thus subjective data was collected at the end of the experiment. The subjective data contained the user’s 3D experience and responses against the standard SSQ and the feedback form. These questionnaires can be seen in Appendix 6B.

Table 6.3 SSQ Scores distribution

S. No.

Symptom

Nauseaa

Oculomotorb

Disorientation

1

General discomfort

1

1

0

2

Fatigue

0

1

0

3

Headache

0

1

0

4

Eyestrain

0

1

0

5

Difficulty focusing

0

1

1

6

Increased salivation

1

0

0

7

Sweating

1

0

0

8

Nausea

1

0

1

9

Difficulty concentrating

1

1

0

10

Fullness of head

0

0

1

11

Blurred vision

0

1

1

12

Dizziness with

eyes open

0

0

1

13

Dizziness with eyes closed

0

0

1

14

Vertigo

0

0

1

15

Stomach awareness

1

0

0

16

Burping

1

0

0

Total SSQ score = (A + B + C) X 3.74. Scale multiplication factor: aNausea: A = score X 9.54 bOculomotor: B = score X 7.58 cDisorientation: C = score X 13.92

Simulator Sickness Questionnaire

The SSQ was filled out by all the participants regarding their experience during watching video clips in the three visual stimulation conditions. The SSQ standard was initially developed by Kennedy,43 for the purpose of quantifying the symptoms experienced by viewers. The SSQ standard contained three main components: nausea, disorientation, and oculomotor problems. The general symptoms with their weightings are listed in Table 6.3 and an SSQ sample is provided in Appendix 6B.

The participants need to select one of four categories—None, Slight, Moderate, or Severe—and report the degree to which they experienced each of the symptoms. The quantity values for these scales are 0, 1, 2, and 3, respectively. The scale for each column was computed by multiplying the reported value of the symptom to the weight in each column and then summed down the column. The overall total SSQ score was determined by multiplying the sum of scores across the three columns with 3.74. The procedure for computing the column score is provided at the end ofTable 6.3.

Table 6.4 EEG data description

S. No.

Directory name

EEG and ECG description

01

EC

This directory contains the baseline recording: 5 min for eyes-closed condition before watching any movie.

02

EO 2D

Baseline recording: 5 min for eyes-open condition before watching any movie.

03

2D

This directory contains EEG or ECG recording for 10 min during watching movie in 2D display mode. There were six clips presented to participants in 2D mode, hence the directory contains six files in .edf format.

04

EO 3DA

Baseline recording: 5 min for eyes-open condition after watching the movie in 2D display and before watching movie in 3D active display mode.

05

3DA

EEG or ECG recording for 10 min during watching movie in 3D active display mode. There were six clips presented to participants in 3DA mode, hence the directory contains six files in .edf format.

06

EO 3DP

Baseline recording: 5 min for eyes-open condition after watching the movie in 3D active display and before watching movie in 3D passive display mode.

07

3DP

EEG or ECG recording for 10 min during watching movie in 3D passive display mode. There were six clips presented to participants in 3DP mode, hence the directory contains six files in .edf format.

Subjective Data

The participants filled out a questionnaire about their self-preferences toward the available consumer 3D technologies (see Appendix 6B).

 
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