Research Article
Analysis of User Interaction with a Brain-Computer Interface Based on Steady-State Visually Evoked Potentials: Case Study of a Game
Table 2
Questionnaire items, translated from Brazilian Portuguese.
| Question topic | Range limits |
| Cap comfort | 0 very uncomfortable–10 very comfortable | Visual comfort of the stimulus | 0 very uncomfortable–10 very comfortable | Fatigue caused by training/by the game | 0 very tiring–10 very invigorating | Motivation for training | 0 very boring–10 very exciting | Game challenge with BCI/keyboard | 0 very easy–10 very challenging | Background color | 0 unpleasant–10 pleasant | Pleasantness of the positioning of the stimuli | 0 very uncomfortable–10 very comfortable | Pleasantness of background color | 0 very uncomfortable–10 very comfortable | Acoustic feedback helps | 0 not at all–10 a lot | Background music disturbs | 0 not at all–10 a lot | Background music lacks | 0 not at all–10 a lot | Intuitiveness of game controls | 0 not intuitive at all–10 very intuitive | Dominion of game controls | 0 total control–10 no control | Control by keyboard is | 0 boring–10 fun | Pleasantness of game | 0 unpleasant–10 pleasant |
|
|