The visual roll motion aftereffect—where stationary objects appear to drift opposite the rotation—was pronounced. Subjects reported “reverse spin” for up to 10 seconds post-test. This impairs fine motor tasks (e.g., typing, clicking small targets).
The visual system detects 7200° of motion, but the vestibular system (inner ear) senses no physical acceleration. This mismatch is the primary driver of motion sickness. After 20 repetitions, the sensory conflict exceeds typical adaptation thresholds, inducing strong cybersickness (simulator sickness variant). do a barrel roll 20x times
Attempting to execute 20 consecutive barrel rolls results in a chaotic user experience: do a barrel roll 20x times
For entertainment, limit barrel rolls to ≤3 repetitions. For research, 20x provides a robust stress test of the vestibular-visual interface. do a barrel roll 20x times