Reconfigurable Retina‐Like Preprocessing Platform for Cortical Visual Neuroprostheses

Akay, Metin

doi:10.1002/9780470068298.ch16

Cited by 3 publications

(2 citation statements)

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“…3) [67]. Similar to the ICVP project, an implanted AISC receives the stimulation parameters and power via wireless link from an external RF block connected to a pocket-size processor [68].…”

Section: Cortivismentioning

confidence: 99%

Brain Machine Interfaces for Vision Restoration: The Current State of Cortical Visual Prosthetics

Niketeghad

Pouratian

2019

Neurotherapeutics

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Loss of vision alters the day to day life of blind individuals and may impose a significant burden on their family and the economy. Cortical visual prosthetics have been shown to have the potential of restoring a useful degree of vision via stimulation of primary visual cortex. Due to current advances in electrode design and wireless power and data transmission, development of these prosthetics has gained momentum in the past few years and multiple sites around the world are currently developing and testing their designs. In this review, we briefly outline the visual prosthetic approaches and describe the history of cortical visual prosthetics. Next, we focus on the state of the art of cortical visual prosthesis by briefly explaining the design of current devices that are either under development or in the clinical testing phase. Lastly, we shed light on the challenges of each design and provide some potential solutions.

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Section: Cortivismentioning

confidence: 99%

Brain Machine Interfaces for Vision Restoration: The Current State of Cortical Visual Prosthetics

Niketeghad

Pouratian

2019

Neurotherapeutics

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“…Consequently, numerous proposals emulate modelled biological systems [4], observe its behaviour [24] and, subsequently, aim to synthetically reproduce the behaviour of the biological system [23,37]. Once the system is understood, proposals of varying degrees of complexity can be developed, such as in [25], where the authors propose the design of a cortical neuroprosthesis capable of producing stimulating currents. In [26], the authors utilise neural networks implemented in reconfigurable hardware (FPGA -Field Programmable Gate Array) for stage segmentation, and in [27], the visual system is modelled to reproduce neuronal activity.…”

Section: Technical Overviewmentioning

confidence: 99%

System-on-chip design of the cortical-diencephalic centre of the lower urinary tract

Pérez

Méndez

Martínez

et al. 2018

Computers in Biology and Medicine

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This article presents the design of a field programmable gate array (FPGA)-based prototype of a system on chip (SoC) capable of behaving as one of the nerve centres comprising the neuroregulatory system in humans: the cortical-diencephalic nerve centre. The neuroregulatory system is a complex nerve system consisting of a heterogeneous group of nerve centres. These centres are distributed throughout the length of the spinal cord, are autonomous, communicate via interneurons, and govern and regulate the behaviour of multiple organs and systems in the human body. As a result of years of study of the functioning and composition of the neuroregulatory system of the lower urinary tract (LUT), the centres that regulate this system have been isolated. The objective of this study is to understand the individual functioning of each centre in order to create a general model of the neuroregulatory system that is capable of operating at the level of the actual nerve centre. This model represents an advancement of the current black box models that do not allow for isolated or independent treatment of system dysfunction. In this study, we re-visit our research into the viability of the hardware design of one of these centres-the cortical-diencephalic centre. We describe this hardware because functioning of the centre is completely configurable and programmable, which validates the design for other centres that comprise the neuroregulatory system. In this document, we succinctly present the formal model of the centre, propose a hardware design and an FPGA-based prototype, construct a testing and simulation environment to evaluate it and, lastly, analyse and contrast the results using data obtained from real patients, verifying that the functional behaviour fits that observed in humans.

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Visual Prosthesis, Cortical Devices

Fernández¹

2014

Encyclopedia of Computational Neuroscience

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Reconfigurable Retina‐Like Preprocessing Platform for Cortical Visual Neuroprostheses

Cited by 3 publications

References 0 publications

Brain Machine Interfaces for Vision Restoration: The Current State of Cortical Visual Prosthetics

Brain Machine Interfaces for Vision Restoration: The Current State of Cortical Visual Prosthetics

System-on-chip design of the cortical-diencephalic centre of the lower urinary tract

Visual Prosthesis, Cortical Devices

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