The Experts below are selected from a list of 22671 Experts worldwide ranked by ideXlab platform
Li Fellandertsai - One of the best experts on this subject based on the ideXlab platform.
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early exposure to Haptic Feedback enhances performance in surgical simulator training a prospective randomized crossover study in surgical residents
Surgical Endoscopy and Other Interventional Techniques, 2006Co-Authors: P Strom, Leif Hedman, L Sarna, Ann Kjellin, Torsten Wredmark, Li FellandertsaiAbstract:Early exposure to Haptic Feedback enhances performance in surgical simulator training: a prospective randomized crossover study in surgical residents
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early exposure to Haptic Feedback enhances performance in surgical simulator training a prospective randomized crossover study in surgical residents
Surgical Endoscopy and Other Interventional Techniques, 2006Co-Authors: P Strom, Leif Hedman, L Sarna, Ann Kjellin, Torsten Wredmark, Li FellandertsaiAbstract:Background In the literature of skill acquisition and transfer of skills, it often is assumed that the rate of skill acquisition depends on what has been learned in a similar context (i.e., surgical simulators providing Haptic Feedback). This study aimed to analyze whether the addition of Haptic Feedback early in the training phase for image-guided surgical simulation improves performance.
Leif Hedman - One of the best experts on this subject based on the ideXlab platform.
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early exposure to Haptic Feedback enhances performance in surgical simulator training a prospective randomized crossover study in surgical residents
Surgical Endoscopy and Other Interventional Techniques, 2006Co-Authors: P Strom, Leif Hedman, L Sarna, Ann Kjellin, Torsten Wredmark, Li FellandertsaiAbstract:Early exposure to Haptic Feedback enhances performance in surgical simulator training: a prospective randomized crossover study in surgical residents
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early exposure to Haptic Feedback enhances performance in surgical simulator training a prospective randomized crossover study in surgical residents
Surgical Endoscopy and Other Interventional Techniques, 2006Co-Authors: P Strom, Leif Hedman, L Sarna, Ann Kjellin, Torsten Wredmark, Li FellandertsaiAbstract:Background In the literature of skill acquisition and transfer of skills, it often is assumed that the rate of skill acquisition depends on what has been learned in a similar context (i.e., surgical simulators providing Haptic Feedback). This study aimed to analyze whether the addition of Haptic Feedback early in the training phase for image-guided surgical simulation improves performance.
Max Mulder - One of the best experts on this subject based on the ideXlab platform.
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Evaluation of a Haptic Feedback System for Flight Envelope Protection
AIAA Scitech 2019 Forum, 2019Co-Authors: D. Van Baelen, Joost Ellerbroek, Marinus M. Van Paassen, Max MulderAbstract:Modern fly-by-wire aircraft use flight envelope protection systems, whose actions are not always clear to pilots. To promote situation awareness, proximity to the limits of the flight envelope can be communicated using Haptic Feedback, by providing forces through the control device. Such a system was developed and this paper reports on the evaluation experiment. Professional pilots were invited to fly an Airbus A320 model in the Delft University of Technology Simona research simulator. A windshear and an icing scenario were flown using a full and degraded control law, with and without the Haptic Feedback system. The objective results show that the Haptic Feedback system does not lead to significant improvements in either performance or safety metrics, but also does not interfere with nominal pilot tasks. In the debriefing questionnaire, however, pilots expressed a clear preference for the Haptic system. Recommendations for future research include the addition of visual support to complement the Haptic cues, and the redesign of the scenarios to allow pilots more freedom in control.
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design and evaluation of a flight envelope protection Haptic Feedback system
Analysis Design and Evaluation of Human-Machine Systems, 2016Co-Authors: Joost Ellerbroek, M Rodriguez J M Y Martin, Thomas Lombaerts, M M Van Paassen, Max MulderAbstract:Abstract: This paper describes the design and evaluation of a shared control, Haptic Feedback system to communicate Flight Envelope Protection System intent. The concept uses a combination of stiffness Feedback and vibration to communicate proximity of the aircraft state to flight envelope boundaries. In addition, a stick center shift can be applied by the envelope protection system to cooperatively perform corrective actions in case of severe excursions of the envelope margins. Results from the evaluation experiment show improved performance with Haptic Feedback in both scenarios. Workload ratings were unaffected. Pilot opinion was unanimously positive, especially with regard to the combination of stiffness Feedback and vibration cues.
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measuring neuromuscular control dynamics during car following with continuous Haptic Feedback
Systems Man and Cybernetics, 2011Co-Authors: David A. Abbink, Max Mulder, F C T Van Der Helm, Erwin R BoerAbstract:In previous research, a driver support system that uses continuous Haptic Feedback on the gas pedal to inform drivers of the separation to the lead vehicle was developed. Although Haptic Feedback has been previously shown to be beneficial, the influence of the underlying biomechanical properties of the driver on the effectiveness of Haptic Feedback is largely unknown. The goal of this paper is to experimentally determine the biomechanical properties of the ankle-foot complex (i.e., the admittance) while performing a car-following task, thereby separating driver responses to visual Feedback from those to designed Haptic Feedback. An experiment was conducted in a simplified fixed-base driving simulator, where ten participants were instructed to follow a lead vehicle, with and without the support of Haptic Feedback. During the experiment, the lead vehicle velocity was perturbed, and small stochastic torque perturbations were applied to the pedal. Both perturbations were separated in the frequency domain to allow the simultaneous estimation of frequency response functions of both the car-following control behavior and the biomechanical admittance. For comparison to previous experiments, the admittance was also estimated during three classical motion control tasks (resist forces, relax, and give way to forces). The main experimental hypotheses were that, first, the Haptic Feedback would encourage drivers to adopt a “give way to force task,” resulting in larger admittance compared with other tasks and, second, drivers needed less control effort to realize the same car-following performance. Time- and frequency-domain analyses provided evidence for both hypotheses. The developed methodology allows quantification of the range of admittances that a limb can adopt during vehicle control or while performing a variety of motion control tasks. It thereby allows detailed computational driver modeling and provides valuable information on how to design and evaluate continuous Haptic Feedback systems.
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artificial force field for Haptic Feedback in uav teleoperation
Systems Man and Cybernetics, 2009Co-Authors: T M Lam, Max Mulder, H W Boschloo, M M Van PaassenAbstract:The Feedback upon which operators in teleoperation tasks base their control actions differs substantially from the Feedback to the driver of a vehicle. On the one hand, there is often a lack of sensory information; on the other hand, there is additional status information presented via the visual channel. Haptic Feedback could be used to unload the visual channel and to compensate for the lack of Feedback in other modalities. For collision avoidance, Haptic Feedback could provide repulsive forces via the control inceptor. Haptic Feedback allows operators to interpret the repulsive forces as impedance to their control deflections when a potential for collision exists. Haptic information can be generated from an artificial force field (AFF) that maps environment constraints to repulsive forces. This paper describes the design and theoretical evaluation of a novel AFF, i.e., the parametric risk field, for teleoperation of an uninhabited aerial vehicle (UAV). The field allows adjustments of the size, shape, and force gradient by means of parameter settings, which determine the sensitivity of the field. Computer simulations were conducted to evaluate the effectiveness of the field for collision avoidance for various parameter settings. Results indicate that the novel AFF more effectively performs the collision avoidance function than potential fields known from literature. Because of its smaller size, the field yields lower repulsive forces, results in less force cancellation effects, and allows for larger UAV velocities. This indicates less operator control demand and more effective UAV operations, both expected to lead to lower operator workload, while, at the same time, increasing safety.
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exploring the dimensions of Haptic Feedback support in manual control
Journal of Computing and Information Science in Engineering, 2009Co-Authors: David A. Abbink, Max MulderAbstract:A promising way to support operators in a manual control task is to provide them with guiding Feedback forces on the control device (e.g., the steering wheel). These additional forces can suggest a safe course of action, which operators can follow or over-rule. This paper explores the idea that the Feedback forces can be designed not only to depend on a calculated error (i.e., force Feedback) but also on the control device position (i.e., stiffness Feedback). First, the fundamental properties of force and stiffness Feedback are explained, and important parameters for designing beneficial Haptic Feedback are discussed. Then, in an experiment, the unassisted control of a second-order system (perturbed by a multisine disturbance) is compared with the same control task supported by four Haptic Feedback systems: weak and strong force Feedback, both with and without additional stiffness Feedback. Time and frequency-domain analyses are used to understand the changes in human control behavior. The experimental results indicate that-when well designed-stiffness Feedback may raise error-rejection performance with the same level of control activity as during unassisted control. The findings may aid in the design of Haptic Feedback systems for automotive and aerospace applications, where human attention is still required in a visually overloaded environment.
P Strom - One of the best experts on this subject based on the ideXlab platform.
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early exposure to Haptic Feedback enhances performance in surgical simulator training a prospective randomized crossover study in surgical residents
Surgical Endoscopy and Other Interventional Techniques, 2006Co-Authors: P Strom, Leif Hedman, L Sarna, Ann Kjellin, Torsten Wredmark, Li FellandertsaiAbstract:Early exposure to Haptic Feedback enhances performance in surgical simulator training: a prospective randomized crossover study in surgical residents
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early exposure to Haptic Feedback enhances performance in surgical simulator training a prospective randomized crossover study in surgical residents
Surgical Endoscopy and Other Interventional Techniques, 2006Co-Authors: P Strom, Leif Hedman, L Sarna, Ann Kjellin, Torsten Wredmark, Li FellandertsaiAbstract:Background In the literature of skill acquisition and transfer of skills, it often is assumed that the rate of skill acquisition depends on what has been learned in a similar context (i.e., surgical simulators providing Haptic Feedback). This study aimed to analyze whether the addition of Haptic Feedback early in the training phase for image-guided surgical simulation improves performance.
Ann Kjellin - One of the best experts on this subject based on the ideXlab platform.
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early exposure to Haptic Feedback enhances performance in surgical simulator training a prospective randomized crossover study in surgical residents
Surgical Endoscopy and Other Interventional Techniques, 2006Co-Authors: P Strom, Leif Hedman, L Sarna, Ann Kjellin, Torsten Wredmark, Li FellandertsaiAbstract:Early exposure to Haptic Feedback enhances performance in surgical simulator training: a prospective randomized crossover study in surgical residents
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early exposure to Haptic Feedback enhances performance in surgical simulator training a prospective randomized crossover study in surgical residents
Surgical Endoscopy and Other Interventional Techniques, 2006Co-Authors: P Strom, Leif Hedman, L Sarna, Ann Kjellin, Torsten Wredmark, Li FellandertsaiAbstract:Background In the literature of skill acquisition and transfer of skills, it often is assumed that the rate of skill acquisition depends on what has been learned in a similar context (i.e., surgical simulators providing Haptic Feedback). This study aimed to analyze whether the addition of Haptic Feedback early in the training phase for image-guided surgical simulation improves performance.
