High-Side Digitally Current Controlled Biphasic Bipolar Microstimulator

Hanson, T. L., Omarsson, B., O'Doherty, J. E., Peikon, I. D., Lebedev, M. A., Nicolelis, M. A. L. (May 2012) High-Side Digitally Current Controlled Biphasic Bipolar Microstimulator. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 20 (3). pp. 331-340. ISSN 1534-4320

URL: http://www.ncbi.nlm.nih.gov/pubmed/22328184
DOI: 10.1109/tnsre.2012.2187219

Abstract

Electrical stimulation of nervous tissue has been extensively used as both a tool in experimental neuroscience research and as a method for restoring of neural functions in patients suffering from sensory and motor disabilities. In the central nervous system, intracortical microstimulation (ICMS) has been shown to be an effective method for inducing or biasing perception, including visual and tactile sensation. ICMS also holds promise for enabling brain-machine-brain interfaces (BMBIs) by directly writing information into the brain. Here we detail the design of a high-side, digitally current-controlled biphasic, bipolar microstimulator, and describe the validation of the device in vivo. As many applications of this technique, including BMBIs, require recording as well as stimulation, we pay careful attention to isolation of the stimulus channels and parasitic current injection. With the realized device and standard recording hardware-without active artifact rejection-we are able to observe stimulus artifacts of less than 2 ms in duration.

Item Type: Paper
Uncontrolled Keywords: Artifact cortex microstimulation suppression electrical-stimulation cortical microstimulation visual-cortex neurons model
Subjects: Investigative techniques and equipment
Investigative techniques and equipment > electrophysiology
CSHL Authors:
Communities: CSHL labs > Zador lab
Watson School > Publications
Depositing User: Matt Covey
Date: May 2012
Date Deposited: 30 Jan 2013 20:16
Last Modified: 29 Sep 2014 18:35
Related URLs:
URI: http://repository.cshl.edu/id/eprint/26955

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