Journal article

Neural activity shaping utilizing a partitioned target pattern

Martin J Spencer, Tatiana Kameneva, David B Grayden, Anthony N Burkitt, Hamish Meffin

JOURNAL OF NEURAL ENGINEERING | IOP PUBLISHING LTD | Published : 2021

Abstract

Electrical stimulation of neural tissue is used in both clinical and experimental devices to evoke a desired spatiotemporal pattern of neural activity. These devices induce a local field that drives neural activation, referred to as an activating function or generator signal. In visual prostheses, the spread of generator signal from each electrode within the neural tissue results in a spread of visual perception, referred to as a phosphene. In cases where neighboring phosphenes overlap, it is desirable to use current steering or neural activity shaping strategies to manipulate the generator signal between the electrodes to provide greater control over the total pattern of neural activity. Ap..

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Grants

Awarded by Australian Research Council


Funding Acknowledgements

This project was supported by an Australian Research Council Linkage Project Grant (LP170101162). The authors thank Brian Gordon and Lindsay Powles from Bionic Vision Technologies Ltd, Matt Petoe from the Bionics Institute, and Kevin Meng from The University of Melbourne's Department of Biomedical Engineering for their feedback on the partitioning approach to neural activity shaping.