The semicircular canals as a primary etiological factor in motion sickness
Diagnostic criteria for grading the severity of acute motion sickness
Motion sickness produced by head movement as a function of rotational velocity
Human otolith function - Measurements in Gemini flights 5 and 7
Comparison of five levels of motion sickness severity as the basis for grading susceptibility
Motion sickness produced by head movement as a function of rotational velocity
Visual horizontal perception in relation to otolith function
Role of the otolith organs in the perception of horizontality.