这是由于大脑对外在情况的预期与从感官所接受的信息不一致而造成不舒服的后果。为了要维持平衡，大脑会综合许多感觉信息，包括视觉、触觉及内耳平衡觉等，其中内耳平衡觉尤其重要。多数时候，所有的感觉输入都相互一致，但如果这些感觉输相互入不一致时，就会造成晕车症，而 This is due to the uncomfortable consequences of the inconsistency between the expectations of the external situation of the brain and the information received from the senses. In order to maintain balance, the brain synthesizes many sensory information, including vision, touch, and balance in the inner ear, among which the inner ear balance is particularly important. Most of the time, all sensory inputs are consistent with each other, but if these feelings are inconsistent with each other, it will cause motion sickness.