LAAS 20
 
27-29 March 2014

Hadath, Lebanon

20th LAAS International Science Conference
    Advanced Research for Better Tomorrow

the Lebanese Association for the Advancement of Sience
Doctoral school of sciences and technology
Lebanese university

Pr. Mohamad Sawan

Keynote speaker in Engineering

Brain-Machine Interfaces for Neurorecording and Subsequent Diseases Treatment http://www.edas.info/icon/favorite.gif


Mohamad Sawan

Prof. Mohamad Sawan (Polytechnique Montréal, Canada)

 

Functional neuroimaging of brain activities is among the emerging technique in cognitive research and clinical applications. This non-invasive monitoring method uses a combination of functional near-infrared spectroscopy (fNIRS) and electroencephalo-graphy (EEG), and require high-channel count to cover the whole head, high sensitivity for event detection, and portability for long-term operation. We describe in this talk a 32 fNIRS/EEG portable system, which enables to locate the variations of concentration of different blood chromophores through centimeters of biological tissues using nonionizing low-dose radiation. By acquiring data at two or more wavelengths, it distinguishes and record simultaneous changes in oxyhemoglobin and deoxyhemoglobin. The achieved device is being used for stroke, epilepsy, and neuropsychology studies. On the other hand, the deep brain level of epileptic diseases requires neurorecording for onset seizures detection and subsequent treatment through neurostimulation and/or drug delivery. The later represents the second part of this talk, where a global system view as well as dedicated low-power circuitries will be presented.

 Presenter bio: Mohamad Sawan received the Ph.D. degree in 1990 in EE Dept., from Sherbrooke University, Canada. He joined Polytechnique Montréal in 1991, where he is currently a Professor of microelectronics and biomedical engineering. Dr. Sawan is a holder of a Canada Research Chair in Smart Medical Devices, he is leading the Microsystems Strategic Alliance of Quebec, and is founder of the Polystim Neurotechnologies Lab. Dr. Sawan is also founder and cofounder of several int’l conferences such as the NEWCAS and BIOCAS. He is also cofounder and Associate Editor (AE) of the IEEE Trans. on BIOCAS, he is Deputy Editor-in Chief of the IEEE TCAS-II, and he is Editor and AE, and member of the board of several int’l Journals. He is member of the board of Governors of IEEE CASS. He published more than 600 peer reviewed Journal and conference papers, two books, 10 book chapters, and 12 patents. He received several awards, among them the Medal of Merit from The President of Lebanon, the Queen-Elizabeth II Diamond Jubilee Medal, and the Bombardier and Jacques-Rousseau Awards. Dr. Sawan is Fellow of the IEEE, Fellow of the Canadian Academy of Engineering, Fellow of the Engineering Institutes of Canada, and “Officer” of the National Order of Quebec.

 

Title:
Brain-Machine Interfaces for Neurorecording and Subsequent Diseases Treatment

Abstract:
Functional neuroimaging of brain activities is among the emerging technique in cognitive research and clinical applications. This non-invasive monitoring method uses a combination of functional near-infrared spectroscopy (fNIRS) and electroencephalo-graphy (EEG), and require high-channel count to cover the whole head, high sensitivity for event detection, and portability for long-term operation. We describe in this talk a 32 fNIRS/EEG portable system, which enables to locate the variations of concentration of different blood chromophores through centimeters of biological tissues using nonionizing low-dose radiation. By acquiring data at two or more wavelengths, it distinguishes and record simultaneous changes in oxyhemoglobin and deoxyhemoglobin. The achieved device is being used for stroke, epilepsy, and neuropsychology studies. On the other hand, the deep brain level of epileptic diseases requires neurorecording for onset seizures detection and subsequent treatment through neurostimulation and/or drug delivery.  The later represents the second part of this talk, where a global system view as well as dedicated low-power circuitries will be presented.