Sensory Feedback and Sensory Fusion Laboratory

 

Laboratory Head: Dr. Strahinja Dosen

 

Laboratory activities:

The research activities in the Sensory Feedback and Sensory Fusion lab (SF&SF) are directed towards the two main directions.

First, we would like to understand the role of multimodal sensory feedback in the normal human motor control. The insight into the mechanisms of human sensory processing represents a foundation and inspiration for the development of rehabilitation methods with an emphasis on the role of sensory information: 1) sensory substitution to provide feedback in prosthetic devices, and 2) the use of augmented/enhanced feedback for neuromuscular rehabilitation. For example, we are currently investigating the properties of the human tactile sense stimulated using various methods, such as electrocutaneous and vibratory stimulation, to provide feedback about the system state during the (non-visual) closed loop control of dynamic systems. We also aim at developing new interfaces and methods to provide stimulation (e.g., flexible matrices, hybrid stimulators).

Second, we are developing novel control methods for rehabilitation devices that are based on controllers utilizing multimodal sensor information to operate the systems autonomously and intelligently. Sensor fusion is employed to implement robust automatic control which decreases the burden from the user. We are currently experimenting with the use of artificial vision, inertial measurement units, and touch sensors for the automatic control of robotic prosthetic hands.

Together with the Myoelectric Control Lab, we are working towards the development of closed loop prosthetic systems implementing the concept of sensory-motor integration, which we believe is instrumental for the more efficient use of the prosthesis as well as for the eventual embodiment of the device into a body-scheme of the user.

 

Representative recent publications:

1)     R. Krigslund, S. Dosen, P. Popovski, J. Dideriksen, G. F. Pedersen, and D. Farina, "A Novel Technology for Motion Capture Using Passive UHF RFID Tags," IEEE Trans Biomed Eng, 2012 Jul 20, (in press).

2)     N. Jiang, S. Dosen, K. R. Mueller, and D. Farina,"Myoelectric control of Artificial Limbs: is There the Need for a Change of Focus?", IEEE Signal Processing Magazine, Vol. 29, No. 5, pp. 148-152, Sep.

3)    M. D'Alonzo, S. Dosen, C. Cipriani and D. Farina, "The HyVE: Hybrid Vibro-Electrotactile stimulation for sensory feedback in upper limb prostheses" In proc: Int Conf NeuroRehab, ICNR, Toledo, November 14-16, 2012.

4)     L. Popovic-Maneski, S. Dosen and G. Bijelic, "MAXSENS: A flexible matrix electrode for sensory substitution,", In proc: Int Conf NeuroRehab, ICNR, Toledo, November 14-16, 2012.

A. Ninu, S. Dosen, F. Rattay, H. Dietl, D. Farina, "A Novel Wearable Vibro-tactile Haptic Device," Int Conf on Consumer Electronics, 11-14 January 2013, Las Vegas, US

 

DEMOS (in preparation)

* Closed loop control of a pendulum and electrocutaneous tracking

* The use of stereovision, augmented reality and inertial sensing for the closed loop control of hand prosthesis

* Electrocutaneous menu system and inertial sensors for the closed loop control of hand prosthesis