TY - Generic T1 - Passive and active assistance for human performance of a simulated underactuated dynamic task T2 - Proceedings 11th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. HAPTICS 2003 Y1 - 2003 A1 - O'Malley, M.K. A1 - Abhishek Gupta KW - Haptic interfaces KW - Virtual reality AB -

Machine-mediated training of dynamic task completion is typically implemented with passive intervention via virtual fixtures or active assist by means of record and replay strategies. During interaction with a real dynamic system however, the user relies on both visual and haptic feedback real-time in order to elicit desired motions. This work investigates human performance in a Fitts' type targeting task with an underactuated dynamic system. Performance, in terms of number of hits and between-target tap times, is measured while various passive and active control modes are displayed concurrently with the haptic feedback from the simulated system's own dynamic behavior. It Is hypothesized that passive and active assist modes that are implemented during manipulation of simulated underactuated systems could be beneficial in rehabilitation applications. Results indicate that human performance can be improved significantly with the passive and active assist modes

JF - Proceedings 11th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. HAPTICS 2003 CY - Los Angeles, CA, USA UR - http://dx.doi.org/10.1109/HAPTIC.2003.1191308 N1 -

simulated underactuated dynamic task;machine-mediated training;virtual fixtures;active assist;haptic feedback;visual feedback;

ER -