TY - GEN
T1 - Evaluating wrist-based haptic feedback for non-visual target finding and path tracing on a 2D surface
AU - Hong, Jonggi
AU - Pradhan, Alisha
AU - Froehlich, Jon E.
AU - Findlater, Leah
N1 - Publisher Copyright:
© 2017 Association for Computing Machinery.
PY - 2017/10/19
Y1 - 2017/10/19
N2 - Precisely guiding a blind person's hand can be useful for a range of applications from tracing printed text to learning and understanding shapes and gestures. In this paper, we evaluate wrist-worn haptics as a directional hand guide. We implemented and evaluated the following haptic wristband variations: (1) four versus eight vibromotor designs; (2) vibration from only a single motor at a time versus from two adjacent motors using interpolation. To evaluate our designs, we conducted two studies: Study 1 (N=13, 2 blind) showed that participants could non-visually find targets and trace paths more quickly and accurately with single-motor feedback than with interpolated feedback, particularly when only four motors were used. Study 2 (N=14 blind or visually impaired participants) found that single-motor feedback with four motors was faster, more accurate, and most preferred compared to similar feedback with eight motors. We derive implications for the design of wrist-worn directional haptic feedback and discuss future work.
AB - Precisely guiding a blind person's hand can be useful for a range of applications from tracing printed text to learning and understanding shapes and gestures. In this paper, we evaluate wrist-worn haptics as a directional hand guide. We implemented and evaluated the following haptic wristband variations: (1) four versus eight vibromotor designs; (2) vibration from only a single motor at a time versus from two adjacent motors using interpolation. To evaluate our designs, we conducted two studies: Study 1 (N=13, 2 blind) showed that participants could non-visually find targets and trace paths more quickly and accurately with single-motor feedback than with interpolated feedback, particularly when only four motors were used. Study 2 (N=14 blind or visually impaired participants) found that single-motor feedback with four motors was faster, more accurate, and most preferred compared to similar feedback with eight motors. We derive implications for the design of wrist-worn directional haptic feedback and discuss future work.
KW - Accessibility
KW - Blind user
KW - Haptic feedback
KW - Haptic wristband
KW - Wearable computing
UR - http://www.scopus.com/inward/record.url?scp=85041421081&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85041421081&partnerID=8YFLogxK
U2 - 10.1145/3132525.3132538
DO - 10.1145/3132525.3132538
M3 - Conference contribution
AN - SCOPUS:85041421081
T3 - ASSETS 2017 - Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility
SP - 210
EP - 219
BT - ASSETS 2017 - Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility
T2 - 19th International ACM SIGACCESS Conference on Computers and Accessibility, ASSETS 2017
Y2 - 29 October 2017 through 1 November 2017
ER -