Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Speech comprehension with a cochlear implant

04.06.2018

Some cochlear implant recipients learn to understand speech exceedingly well while others struggle with speech comprehension difficulties. A novel hearing test shortly after implantation can accurately predict future speech recognition.

Currently the only neuroprostheses that can successfully replace a sensory organ are cochlear implants: They can restore hearing in deaf patients. Cochlear implants pick up sound and translate it into an electric signal which is transmitted directly to the auditory nerve, thus by-passing the damaged middle or inner ear.


Speech comprehension with a cochlear implant

IPSY / Universität zu Lübeck

The transduced sound signal is considerably distorted, however, sounding like a “harsh whisper”, as some patients would describe it. Cochlear implant recipients vary largely in how well they adapt to their device: Some learn to comprehend speech even under difficult listening condi¬tions, such as on the phone or in a pub, while others hardly benefit from their device. The source of this variability is still elusive.

Previous studies have shown that clinical factors such as duration of deafness clearly influence speech recognition with a cochlear implant. A recent study demonstrates that non-speech temporal auditory abilities also contribute considerably to speech outcome (doi: 10.1097/AUD.0000000000000588).

Researchers at the Max Planck Institute for Human Cognitive and Brain Sciences, the Cochlear Implant Center Leipzig, and the University of Lübeck tested newly implanted adults on their capacity to hear temporal modulations in noise. This novel hearing test turned out to be highly correlated with future speech recognition: Patients, who could better hear temporal modulations were also the ones, who had a better speech comprehension six months later. In contrast, the ones with poor auditory temporal resolution had an increased risk of poor future speech comprehension.

For the growing number of cochlear implant patients (to date approximately 150 000 in Europe), this adaptation process is a vital necessity. After a period of deafness, adjusting to the extremely degraded, unfamiliar signal delivered by the implant enables the listener to extract meaning from a messy auditory signal. Novel, reliable hearing tests are essential with respect to two points: On the one hand, they allow to identify poor performers early on and to consequently prescribe appropriate training measures. On the other hand, they can help to improve CI algorithms on an individual basis.

Erb J, Ludwig AA, Kunke D, Fuchs M, & Obleser J. Temporal sensitivity measured shortly after cochlear implantation predicts six-month speech recognition outcome (Ear Hear. 2018 Apr 24. doi: 10.1097/AUD.0000000000000588. [Epub ahead of print]).

Weitere Informationen:

https://www.ncbi.nlm.nih.gov/pubmed/29697465

Rüdiger Labahn | idw - Informationsdienst Wissenschaft
Further information:
http://www.uni-luebeck.de

More articles from Medical Engineering:

nachricht Traumas change perception in the long term
19.08.2019 | Rheinische Friedrich-Wilhelms-Universität Bonn

nachricht Stanford develops wireless sensors that stick to the skin to track our health
16.08.2019 | Stanford University

All articles from Medical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Quantum computers to become portable

Together with the University of Innsbruck, the ETH Zurich and Interactive Fully Electrical Vehicles SRL, Infineon Austria is researching specific questions on the commercial use of quantum computers. With new innovations in design and manufacturing, the partners from universities and industry want to develop affordable components for quantum computers.

Ion traps have proven to be a very successful technology for the control and manipulation of quantum particles. Today, they form the heart of the first...

Im Focus: Towards an 'orrery' for quantum gauge theory

Experimental progress towards engineering quantized gauge fields coupled to ultracold matter promises a versatile platform to tackle problems ranging from condensed-matter to high-energy physics

The interaction between fields and matter is a recurring theme throughout physics. Classical cases such as the trajectories of one celestial body moving in the...

Im Focus: A miniature stretchable pump for the next generation of soft robots

Soft robots have a distinct advantage over their rigid forebears: they can adapt to complex environments, handle fragile objects and interact safely with humans. Made from silicone, rubber or other stretchable polymers, they are ideal for use in rehabilitation exoskeletons and robotic clothing. Soft bio-inspired robots could one day be deployed to explore remote or dangerous environments.

Most soft robots are actuated by rigid, noisy pumps that push fluids into the machines' moving parts. Because they are connected to these bulky pumps by tubes,...

Im Focus: Vehicle Emissions: New sensor technology to improve air quality in cities

Researchers at TU Graz are working together with European partners on new possibilities of measuring vehicle emissions.

Today, air pollution is one of the biggest challenges facing European cities. As part of the Horizon 2020 research project CARES (City Air Remote Emission...

Im Focus: Self healing robots that "feel pain"

Over the next three years, researchers from the Vrije Universiteit Brussel, University of Cambridge, École Supérieure de Physique et de Chimie Industrielles de la ville de Paris (ESPCI-Paris) and Empa will be working together with the Dutch Polymer manufacturer SupraPolix on the next generation of robots: (soft) robots that ‘feel pain’ and heal themselves. The partners can count on 3 million Euro in support from the European Commission.

Soon robots will not only be found in factories and laboratories, but will be assisting us in our immediate environment. They will help us in the household, to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

The power of thought – the key to success: CYBATHLON BCI Series 2019

16.08.2019 | Event News

4th Hybrid Materials and Structures 2020 28 - 29 April 2020, Karlsruhe, Germany

14.08.2019 | Event News

What will the digital city of the future look like? City Science Summit on 1st and 2nd October 2019 in Hamburg

12.08.2019 | Event News

 
Latest News

Shape-shifting sheets

21.08.2019 | Materials Sciences

Study reveals profound patterns in globally important algae

21.08.2019 | Life Sciences

New tools to minimize risks in shared, augmented-reality environments

21.08.2019 | Information Technology

VideoLinks
Science & Research
Overview of more VideoLinks >>>