EFFECTS OF READING BOOKS AND WATCHING MOVIES ON INDUCEMENT OF CAR SICKNESS

摘要

Motion sickness is caused by a conflict of sensory information concerning body movement. Since reading books or maps in a moving vehicle increases the visuo-vestibular sensory conflict, it easily induces car sickness in passengers. Similarly, watching movies via an onboard display, recently becoming popular as rear-seat entertainment, likely accelerates the development of car sickness. This study aimed to evaluate how severely reading books and watching movies in a moving vehicle affect the development of car sickness. Experimental studies showed that watching movies via an onboard display aggravated car sickness more than twice as severely as normal riding without performing any task. The severity was two-tenths less than that caused by reading books.