DEVICES FOR HIC REDUCTION

A passenger seat is described which satisfies a head-injury criterion (HIC). To satisfy the HIC, the passenger seat translates or pivots one or more components of the seatback (104) towards a passenger sitting behind the passenger seat. By translating and/or pivoting the components of the seatback (104) towards the passenger, a crush zone for the passenger seat may be increased, thereby increasing the impact time and correspondingly decreasing the forces felt by the passenger.