Clockless Continuous-Time Neural Spike Sorting: Method, Implementation and Evaluation

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Title: Clockless Continuous-Time Neural Spike Sorting: Method, Implementation and Evaluation
Authors: Liu, Y
Pereira, J
Constandinou, TG
Item Type: Conference Paper
Abstract: In this paper, we present a new method for neural spike sorting based on Continuous Time (CT) signal processing. A set of CT based features are proposed and extracted from CT sampled pulses, and a complete event-driven spike sorting algorithm that performs classification based on these features is developed. Compared to conventional methods for spike sorting, the hardware implementation of the proposed method does not require any synchronisation clock for logic circuits, and thus its power consumption depend solely on the spike activity. This has been implemented using a variable quantisation step CT analogue to digital converter (ADC) with custom digital logic that is driven by level crossing events. Simulation results using synthetic neural data shows a comparable accuracy compared to template matching (TM) and Principle Components Analysis (PCA) based discrete sampled classification.
Issue Date: 23-May-2016
Date of Acceptance: 10-Jan-2016
URI: http://hdl.handle.net/10044/1/30125
DOI: https://dx.doi.org/10.1109/ISCAS.2016.7527296
Publisher: IEEE
Start Page: 538
End Page: 541
Volume: 1
Copyright Statement: © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/I000569/1
EP/K015060/1
EP/M020975/1
Conference Name: IEEE International Symposium on Circuits and Systems (ISCAS)
Publication Status: Published
Start Date: 2016-05-22
Finish Date: 2016-05-25
Conference Place: Montreal, Canada
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering



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