Seminar: BrainHearing – The ear is a gateway to the brain
Speaker: Prof. Thomas Lunner, Oticon, Eriksholm Research Center
Date: 28 February 2018
Location: Denis Byrne Room, Level 4, Australian Hearing Hub
Abstract: The Framework for Understanding Effortful Listening (FUEL, Eriksholm Workshop) has outlined possible mechanisms for when listening is effortful or not. This talk outlines some studies investigating the impact of hearing loss on processing effort and the benefit of a NR scheme on speech recognition and effort. For example it will be shown that signal processing in hearing instruments and noise reduction schemes counteract the effect of noise and reduce the effort required for speech recognition in both adverse listening situations, but also under not so adverse listening situations. The results emphasize the relevance of measuring processing effort in situations where the traditional speech reception measures fail due to ceiling effects. Furthermore, the effect of increased working memory load on listening effort will be shown, as well as hearing instrument noise reduction to mitigate the increased effort.
Biography: Prof. Lunner is a Senior Scientist, Project leader and Research Area manager at Eriksholm Research Centre, Oticon A/S, Denmark. He is also Professor of Cognitive Hearing Science, Linkoping University, Linkoping, Sweden, since 2009 and Professor in Hearing Systems group, Danish Technical University, Denmark, since 2015. He received the M.Sc. degree in physics and electrical engineering in 1989 and the Ph.D. degree in Technical Audiology in 1997, both from Linkoping University. His research interests include the relationship between hearing and cognition, cognitive control of hearing aids, and the involvement of the internet in audiology service delivery and audiology research. He formulated, in cooperation with Technical Audiology in Linköping and Oticon, the digital signal processing scheme and fitting algorithms for the worlds first fully digitized hearing aid, which was presented in 1995, and received the European Unions prestigious technology prize IST Grand Prize in 1996. He has received various innovation prizes and including being awarded Alumni of the Year 2016, Linköping University. He was also awarded the first Fellow at William Demant, 2017. He has published more than 120 peer reviewed papers, and holds more than 20 patents. H-index 33.
Oticon Medical Neuro CI system and Outlook on future of Cochlear Implant Design & Care
Dr. Søren Riis, Oticon Medical, Research & Technology
This talk will start by a brief introduction to the latest Neuro CI system by Oticon Medical with an emphasis on how this differs from other solutions available on the market today and how we with this system address some of the key challenges in current CI designs and CI care. Through examples from our CI research portfolio, the talk will also illustrate visions for the future of CI design and care.
Biography: Dr. Riis completed his PhD in 1998 at the Technical University of Denmark. He joined Oticon in 2002 and transitioned to Oticon Medical in 2013 where he is heading Research & Technology activities at Oticon Medical across Cochlear Implants and Bone Anchored hearing devices. Dr. Riis is a member of the Oticon Eriksholm Research Board and Chairman of the Health Technology group in the Danish Academy of Technical sciences.
Oticon Medical Neural Stimulation Philosophy: a different paradigm
Dr. Pierre Stahl, Oticon Medical, Clinical Research
The way electrodes are driving electrical current and its impact on human hearing sensations have been widely studied in the cochlear implant (CI) field among the past decades. Although these efforts provided new insights and methodologies for more efficient or more focused stimulations (i.e., stimulation modes: bipolar, tripolar, current steering; regarding waveforms: multiphasic, pseudo-monophasic, ramps, etc.), none or only a limited of these findings are actually used in commercialized CI systems, which keep stimulating with gold-standard electrical parameters. The Oticon Medical neural stimulation paradigm build on fairly different characteristics. Low stimulation rate, loudness coding by pulse-duration, stimulation mode and pulse waveform are all parameters that can be considered Oticon Medical unique in the CI field. This presentation aims to highlight these differences based on literature knowledge, dedicated studies and our intrinsic philosophy.
Biography: Dr. Stahl was born in Marseille, France, on March 31, 1986. He received the M.Sc. degree in 2011 in Physics and Biological sciences, and the Ph.D. degree in Acoustic and Electric Psychoacoustics in 2015 from the Aix-Marseille University, France, under the supervision of Olivier Macherey and Sabine Meunier. He joined the Oticon Medical Neurelec Clinical and Research department in 2015.
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