Roger Gassert

Cette personne a quitté l’EPFL

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Publications associées (31)

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Tactile Feedback Improves Performance in a Palpation Task: Results in a VR-Based Testbed

Hannes Bleuler, Roger Gassert, Evren Samur, Laura Santos Carreras

Robotic surgery provides many benefits such as reduced invasiveness and increased dexterity. This comes at the cost of no direct contact between surgeon and patient This physical separation prevents surgeons from performing direct haptic exploration of tis ...

Mit Press2012

Multi-Sensory and Sensorimotor Foundation of Bodily Self-Consciousness – An Interdisciplinary Approach

Olaf Blanke, Roger Gassert, Silvio Ionta

Frontiers Media2011

Augmented White Cane with Multimodal Haptic Feedback

Hannes Bleuler, Roger Gassert, Dominique Chapuis, Simon Gallo, Laura Santos Carreras

This paper proposes an instrumented handle with multimodal augmented haptic feedback, which can be integrated into a conventional white cane to extend the haptic exploration range of visually impaired users. The information extracted from the environment t ...

IEEE2010

MRI/fMRI-Compatible Robotic System With Force Feedback for Interaction With Human Motion

Hannes Bleuler, Roland Moser, Roger Gassert

This paper presents a robotic system that is compatible with anatomical magnetic resonance imaging (MRI) as well as with the more sensitive functional MRI (fMRI), and can safely and smoothly interact with humanmotion during the imaging. The system takes ad ...

2006

Supplementary motor area and anterior intraparietal area integrate fine-graded timing and force control during precision grip

Roger Gassert, Dominique Chapuis

We investigated the neuronal processing of the physiologically particularly important precision grip (opposition of index finger and thumb) by the combination of functional magnetic resonance imaging (fMRI) and an MR-compatible haptic interface. Ten health ...

Wiley-Blackwell2009

Multi-Joint Arm Movements to Investigate Motor Control with fMRI

Hannes Bleuler, Roger Gassert

Performing multi-joint arm movements in controllable dynamic environments during functional magnetic resonance imaging (fMRI) could provide important insights into the brain mechanisms involved in human motor control and related dysfunctions. In order to o ...

2005

Investigation of a Cable Transmission for the Actuation of MR Compatible Haptic Interfaces

Hannes Bleuler, Roger Gassert, Dominique Chapuis

This paper investigates a cable transmission to remotely actuate MR compatible robots over a distance of several meters. Such a transmission could be an interesting solution for haptic interfaces for neuroscience studies performing force feedback during fu ...

2006

A Haptic Knob with a Hybrid Ultrasonic Motor and Powder Clutch Actuator

Hannes Bleuler, Roger Gassert, Dominique Chapuis

In haptics, the forces to be displayed vary widely in terms of magnitude and bandwidth. A single actuator can hardly comply with these requirements. It has thus been proposed to combine electrical motors and passive devices in a hybrid actuator to cover a ...

2007

Virtual Environment to Evaluate Multimodal Feedback Strategies for Augmented Navigation of the Visually Impaired

Hannes Bleuler, Solaiman Shokur, Roger Gassert

This paper proposes a novel experimental environ- ment to evaluate multimodal feedback strategies for augmented navigation of the visually impaired. The environment consists of virtual obstacles and walls, an optical tracking system and a simple device wit ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

FMRI compatible haptic interface actuated with traveling wave ultrasonic motor

Yves Perriard, Roger Gassert, Dominique Chapuis, Markus Flückiger, Matteo Bullo

We are developing haptic interfaces compatible with functional Magnetic Resonance Imaging (fMRI) for neuroscience studies. The presented prototype with one rotary degree of freedom is actuated by a traveling wave ultrasonic motor operating under admittance ...

2005

A Versatile MRI/fMRI Compatible Spherical 2-Dof Haptic Interface

Hannes Bleuler, Roland Moser, Roger Gassert, Dominique Chapuis, Ulrich Spälter

2006