Variability in Reactions to Instructional Guidance during Smartphone-Based Assisted Navigation of Blind Users.

ABSTRACT: 'Turn slightly to the left' the navigational system announces, with the aim of directing a blind user to merge into a corridor. Yet, due to long reaction time, the user turns too late and proceeds into the wrong hallway. Observations of such user behavior in real-world navigation settings motivate us to study the manner in which blind users react to the instructional feedback of a turn-by-turn guidance system. We found little previous work analyzing the extent of the variability among blind users in reaction to different instructional guidance during assisted navigation. To gain insight into how navigational interfaces can be better designed to accommodate the information needs of different users, we conduct a data-driven analysis of reaction variability as defined by motion and timing mea

SUBMITTER: Ohn-Bar E 

PROVIDER: S-EPMC6708581 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature