FPGA design of a pulse encoder for optoelectronic neural stimulation and recording arrays

Arfan Ghani

doi:10.1109/BioCAS.2013.6679671

FPGA design of a pulse encoder for optoelectronic neural stimulation and recording arrays

Arfan Ghani

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

1 Citation (Scopus)

Abstract

This paper presents a new control methodology for high throughput optoelectronic/optogenetic prostheses. Optogenetic prostheses use a gene therapy method to photosensitize neurons, for which the most efficient stimulation is short pulses of just enough high intensity light. We have previously demonstrated that stimulation can be achieved with combined CMOS-Nitride micro-photonic systems. We have now explored operating schemes to provide accurate short pulses of high radiance light in an intensity modulation scheme for the purpose of retinal prosthesis. We have shown that by utilizing the sparse nature of retinal code, it is possible to have an adaptive system which minimizes information transfer compared to raster or purely asynchronous bit serial modes. We are thus being able to provide more dynamic and thus intensity accuracy. We have implemented our schemes on an FPGA to measure relative modes.

Original language	English
Title of host publication	2013 IEEE Biomedical Circuits and Systems Conference (BioCAS)
Publisher	IEEE
Pages	190-193
Number of pages	4
ISBN (Electronic)	978-1-4799-1471-5, 978-1-4799-1470-8
ISBN (Print)	978-1-4799-1469-2
DOIs	https://doi.org/10.1109/BioCAS.2013.6679671
Publication status	Published - 2013
Event	2013 IEEE Biomedical Circuits and Systems Conference - Rotterdam, Netherlands Duration: 31 Oct 2013 → 2 Nov 2013

Conference

Conference	2013 IEEE Biomedical Circuits and Systems Conference
Abbreviated title	BioCAS
Country/Territory	Netherlands
City	Rotterdam
Period	31/10/13 → 2/11/13

Keywords

Prosthetics
Retina
Field programmable gate arrays
Registers
Visualization
Neurons
Clocks
prosthetics
bioelectric potentials
bio-optics
CMOS integrated circuits
encoding
eye
field programmable gate arrays
gene therapy
intensity modulation
micro-optics
neurophysiology
optoelectronic devices
relative mode measurement
FPGA design
pulse encoder
optoelectronic neural stimulation
recording array
control methodology
high throughput optoelectronic-optogenetic prosthesis
gene therapy method
neuron photosensitization
short pulse stimulation
high intensity light
CMOS-nitride microphotonic system
high radiance light
intensity modulation scheme
retinal prosthesis
sparse retinal code
adaptive system
information transfer minimization
raster mode
purely asynchronous bit serial mode
intensity accuracy
optoelectronics
optogenetic
visual prosthesis
neural prosthesis
bionics
neurobionics
biomedical
FPGA
Controller

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10.1109/BioCAS.2013.6679671

Cite this

@inproceedings{b779170351c943f590cadd24c43dca60,

title = "FPGA design of a pulse encoder for optoelectronic neural stimulation and recording arrays",

abstract = "This paper presents a new control methodology for high throughput optoelectronic/optogenetic prostheses. Optogenetic prostheses use a gene therapy method to photosensitize neurons, for which the most efficient stimulation is short pulses of just enough high intensity light. We have previously demonstrated that stimulation can be achieved with combined CMOS-Nitride micro-photonic systems. We have now explored operating schemes to provide accurate short pulses of high radiance light in an intensity modulation scheme for the purpose of retinal prosthesis. We have shown that by utilizing the sparse nature of retinal code, it is possible to have an adaptive system which minimizes information transfer compared to raster or purely asynchronous bit serial modes. We are thus being able to provide more dynamic and thus intensity accuracy. We have implemented our schemes on an FPGA to measure relative modes.",

keywords = "Prosthetics, Retina, Field programmable gate arrays, Registers, Visualization, Neurons, Clocks, prosthetics, bioelectric potentials, bio-optics, CMOS integrated circuits, encoding, eye, field programmable gate arrays, gene therapy, intensity modulation, micro-optics, neurophysiology, optoelectronic devices, relative mode measurement, FPGA design, pulse encoder, optoelectronic neural stimulation, recording array, control methodology, high throughput optoelectronic-optogenetic prosthesis, gene therapy method, neuron photosensitization, short pulse stimulation, high intensity light, CMOS-nitride microphotonic system, high radiance light, intensity modulation scheme, retinal prosthesis, sparse retinal code, adaptive system, information transfer minimization, raster mode, purely asynchronous bit serial mode, intensity accuracy, optoelectronics, optogenetic, visual prosthesis, neural prosthesis, bionics, neurobionics, biomedical, FPGA, Controller",

author = "Arfan Ghani",

year = "2013",

doi = "10.1109/BioCAS.2013.6679671",

language = "English",

isbn = "978-1-4799-1469-2",

pages = "190--193",

booktitle = "2013 IEEE Biomedical Circuits and Systems Conference (BioCAS)",

publisher = "IEEE",

address = "United States",

note = "2013 IEEE Biomedical Circuits and Systems Conference, BioCAS ; Conference date: 31-10-2013 Through 02-11-2013",

}

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T1 - FPGA design of a pulse encoder for optoelectronic neural stimulation and recording arrays

AU - Ghani, Arfan

PY - 2013

Y1 - 2013

N2 - This paper presents a new control methodology for high throughput optoelectronic/optogenetic prostheses. Optogenetic prostheses use a gene therapy method to photosensitize neurons, for which the most efficient stimulation is short pulses of just enough high intensity light. We have previously demonstrated that stimulation can be achieved with combined CMOS-Nitride micro-photonic systems. We have now explored operating schemes to provide accurate short pulses of high radiance light in an intensity modulation scheme for the purpose of retinal prosthesis. We have shown that by utilizing the sparse nature of retinal code, it is possible to have an adaptive system which minimizes information transfer compared to raster or purely asynchronous bit serial modes. We are thus being able to provide more dynamic and thus intensity accuracy. We have implemented our schemes on an FPGA to measure relative modes.

AB - This paper presents a new control methodology for high throughput optoelectronic/optogenetic prostheses. Optogenetic prostheses use a gene therapy method to photosensitize neurons, for which the most efficient stimulation is short pulses of just enough high intensity light. We have previously demonstrated that stimulation can be achieved with combined CMOS-Nitride micro-photonic systems. We have now explored operating schemes to provide accurate short pulses of high radiance light in an intensity modulation scheme for the purpose of retinal prosthesis. We have shown that by utilizing the sparse nature of retinal code, it is possible to have an adaptive system which minimizes information transfer compared to raster or purely asynchronous bit serial modes. We are thus being able to provide more dynamic and thus intensity accuracy. We have implemented our schemes on an FPGA to measure relative modes.

KW - Prosthetics

KW - Retina

KW - Field programmable gate arrays

KW - Registers

KW - Visualization

KW - Neurons

KW - Clocks

KW - prosthetics

KW - bioelectric potentials

KW - bio-optics

KW - CMOS integrated circuits

KW - encoding

KW - eye

KW - field programmable gate arrays

KW - gene therapy

KW - intensity modulation

KW - micro-optics

KW - neurophysiology

KW - optoelectronic devices

KW - relative mode measurement

KW - FPGA design

KW - pulse encoder

KW - optoelectronic neural stimulation

KW - recording array

KW - control methodology

KW - high throughput optoelectronic-optogenetic prosthesis

KW - gene therapy method

KW - neuron photosensitization

KW - short pulse stimulation

KW - high intensity light

KW - CMOS-nitride microphotonic system

KW - high radiance light

KW - intensity modulation scheme

KW - retinal prosthesis

KW - sparse retinal code

KW - adaptive system

KW - information transfer minimization

KW - raster mode

KW - purely asynchronous bit serial mode

KW - intensity accuracy

KW - optoelectronics

KW - optogenetic

KW - visual prosthesis

KW - neural prosthesis

KW - bionics

KW - neurobionics

KW - biomedical

KW - FPGA

KW - Controller

U2 - 10.1109/BioCAS.2013.6679671

DO - 10.1109/BioCAS.2013.6679671

M3 - Conference proceeding

SN - 978-1-4799-1469-2

SP - 190

EP - 193

BT - 2013 IEEE Biomedical Circuits and Systems Conference (BioCAS)

PB - IEEE

T2 - 2013 IEEE Biomedical Circuits and Systems Conference

Y2 - 31 October 2013 through 2 November 2013

ER -

FPGA design of a pulse encoder for optoelectronic neural stimulation and recording arrays

Abstract

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Keywords

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