Reading from a Head-Fixed Display during Walking: Adverse Effects of Gaze Stabilization Mechanisms.

ABSTRACT: Reading performance during standing and walking was assessed for information presented on earth-fixed and head-fixed displays by determining the minimal duration during which a numerical time stimulus needed to be presented for 50% correct naming answers. Reading from the earth-fixed display was comparable during standing and walking, with optimal performance being attained for visual character sizes in the range of 0.2° to 1°. Reading from the head-fixed display was impaired for small (0.2-0.3°) and large (5°) visual character sizes, especially during walking. Analysis of head and eye movements demonstrated that retinal slip was larger during walking than during standing, but remained within the functional acuity range when reading from the earth-fixed display. The detrimental effects on

SUBMITTER: Borg O 

PROVIDER: S-EPMC4460068 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature