Spike detection based on normalized correlation with automatic template generation

Wen Jyi Hwang, Szu Huai Wang, Ya Tzu Hsu

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)

    Abstract

    A novel feedback-based spike detection algorithm for noisy spike trains is presented in this paper. It uses the information extracted from the results of spike classification for the enhancement of spike detection. The algorithm performs template matching for spike detection by a normalized correlator. The detected spikes are then sorted by the OSortalgorithm. The mean of spikes of each cluster produced by the OSort algorithm is used as the template of the normalized correlator for subsequent detection. The automatic generation and updating of templates enhance the robustness of the spike detection to input trains with various spike waveforms and noise levels. Experimental results show that the proposed algorithm operating in conjunction with OSort is an efficient design for attaining high detection and classification accuracy for spike sorting.

    Original languageEnglish
    Pages (from-to)11049-11069
    Number of pages21
    JournalSensors (Switzerland)
    Volume14
    Issue number6
    DOIs
    Publication statusPublished - 2014 Jun 23

    Keywords

    • Brain machine interface
    • Spike detection
    • Spike sorting

    ASJC Scopus subject areas

    • Analytical Chemistry
    • Biochemistry
    • Atomic and Molecular Physics, and Optics
    • Instrumentation
    • Electrical and Electronic Engineering

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