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. 2021 Mar 24;9(1):e24170. doi: 10.2196/24170

Table 4.

Summary of interview data: students and patients with mild cognitive impairment.

Main theme Subthemes

Study VRa2a (students) Study VR2b (patients with MCIb)
Reasons to use VRADAc Because:

  • ...“VRADA is more pleasant and interesting” (51%)

  • ...“time passes faster” (31%)

  • ...“it is less boring” (10%)

  • ...“it is less tedious” (8%)

 Because:

  • ...“VRADA is more pleasant, beautiful, and interesting” (56%)

  • ...“time passes faster” (28%)

  • ...“it is like escaping from reality” (12%)

  • ...“it improves visibility” (4%)
Expectations

  • Future personal use of the system: Yes: 50%; So-so: 33%; No: 17%

  • System is useful for other populations (young 35%, obese 7%, disabilities 39%, older people 19%)

  • Future personal use of the system: Yes: 81%; So-so: 12%; No: 7%

  • System is useful for other populations (young 18%, everybody 23%, disabilities 41%, people who like to explore nature 18%)
Usability

  • Utilization:

    • General difficulties (no difficulties 64%, VR controller 20%, dizziness 8%, sweat 8%)

    • Technical problems (none 79%, connectivity 21%)

    • VR controller use (ΟΚ 75%, uncomfortable handle 17%, sensitivity 8%)

    • VR mask use (OK 89%, blur 11%)

  • Learning to use:

    • Need for extra help: No 100%

    • Need more time to understand the system: No 100%

  • Pleasantness:

    • Most enjoyable parts (environment 68%, music 32%)

    • Least enjoyable parts (repeated virtual parts 48%, graphics 37%, music 15%)

    • Feel uncomfortable: No 83%, dizziness 17%

  • Utilization:

    • General difficulties (no difficulties 63%, VR controller 23%, speed 14%)

    • Technical problems (none 87%, connectivity 13%)

    • VR controller use (ΟΚ 50%, control and sensitivity 50%)

    • VR mask use (OK 95%, dysphoria 5%)

  • Learning to use:

    • Need for extra help: No 78%, Yes (how to start) 13%; Yes (how to use VR controller) 9%

    • Need more time to understand the system: (No 88%, Yes 12%)

  • Pleasantness:

    • Most enjoyable parts (environment 92%, animals 8%)

    • Least enjoyable parts (repeated virtual parts 75%, VR controller 13%, graphics 12%)

    • Feel uncomfortable: No 95%, VR mask 5%

Sense of presence

  • Spatial presence:

    • Feeling of presence: Yes 23%, So-so 67%, No 10%

    • Control of the system: Yes 90%, So-so 10%

  • Engagement:

    • Duration of experience (prefer more 59%, prefer less 41%); distraction of attention: No 68%, cognitive exercises 32%

  • Realism:

    • Realistic or artificial virtual environment (realistic 3%, so-so 20%, artificial 77%)

  • Spatial presence:

    • Feeling of presence: Yes 77%, So-so 12%, No 11%)

    • Control of the system: Yes 88%, So-so 4%, No 8%

  • Engagement:

    • Duration of experience (prefer more 53%, good 47%), distraction of attention: No 76%, VR controller 12%, cognitive exercises 12%

  • Realism:

    • Realistic or artificial virtual environment (realistic 34%, artificial 66%)

Tolerability

  • Feel bad during training: No 85%, Yes 15%

  • Feel nausea, dizziness, or other physical symptoms: No 62%, Yes 38%

  • Feel bad during training (No 93%, Yes 7%)

  • Feel nausea, dizziness, or other physical symptoms: No 93%, Yes 7%)

aVR: virtual reality.

bMCI: mild cognitive impairment.

cVRADA: VR Exercise App for Dementia and Alzheimer’s Patients.