NDLI: Current steering and current focusing with a high-density intracochlear electrode array

Content Provider	IEEE Xplore Digital Library
Author	Falcone, Jessica D. Bhatti, Pamela T.
Copyright Year	2011
Description	Author affiliation: School of Electrical and Computer Engineering at the Georgia Institute of Technology, Atlanta GA 30332-0250 USA (Falcone, Jessica D.; Bhatti, Pamela T.)
Abstract	Creating high-resolution or high-density, intra-cochlear electrode arrays may significantly improve quality of hearing for cochlear implant recipients. Through focused activation of neural populations such arrays may better exploit the cochlea's frequency-to-place mapping, thereby improving sound perception. Contemporary electrode arrays approach high-density stimulation by employing multi-polar stimulation techniques such as current steering and current focusing. In our procedure we compared an advanced high-density array with contemporary arrays employing these strategies. We examined focused stimulation of auditory neurons using an activating function and a neural firing probability model that together enable a first-order estimation of an auditory nerve fiber's response to electrical stimulation. The results revealed that simple monopolar stimulation with a high-density array is more localized than current steering with a contemporary array and requires 25–30% less current. Current focusing with high-density electrodes is more localized than current focusing with a contemporary array; however, a greater amount of current is required. This work illustrates that advanced high-density electrode arrays may provide a low-power, high-resolution alternative to current steering with contemporary cochlear arrays.
Starting Page	1049
Ending Page	1052
File Size	886682
Page Count	4
File Format	PDF
ISBN	9781424441211
ISSN	1557170X
e-ISBN	9781457715891
e-ISBN	9781424441228
DOI	10.1109/IEMBS.2011.6090244
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Arrays Focusing Nerve fibers Cochlear implants Firing
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Steering deep brain stimulation fields using a high resolution electrode array

Multipolar current focusing increases spectral resolution in cochlear implants

Time-domain finite element models of electrochemistry in intracochlear electrodes

Information theoretic optimization of cochlear implant electrode usage probabilities

Breast cancer detection using high-density flexible electrode arrays and electrical impedance tomography

Flexible multi-electrode array with integrated bendable CMOS-chip for implantable systems

Active Electrode Arrays by Chip Embedding in a Flexible Silicone Carrier

Current steering for high resolution retinal implants

Can electric current steering be used to control perception of a retinal prosthesis patient

Current steering and current focusing with a high-density intracochlear electrode array

Similar Documents

Steering deep brain stimulation fields using a high resolution electrode array

Multipolar current focusing increases spectral resolution in cochlear implants

Time-domain finite element models of electrochemistry in intracochlear electrodes

Information theoretic optimization of cochlear implant electrode usage probabilities

Breast cancer detection using high-density flexible electrode arrays and electrical impedance tomography

Flexible multi-electrode array with integrated bendable CMOS-chip for implantable systems

Active Electrode Arrays by Chip Embedding in a Flexible Silicone Carrier

Current steering for high resolution retinal implants

Can electric current steering be used to control perception of a retinal prosthesis patient

Current steering and current focusing with a high-density intracochlear electrode array