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Slow Firing Single Units Are Essential for Optimal Decoding of Silent Speech

Frontiers in human neuroscience, 2022-08, Vol.16, p.874199-874199 [Peer Reviewed Journal]

2022. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;Copyright © 2022 Ganesh, Cervantes and Kennedy. 2022 Ganesh, Cervantes and Kennedy ;ISSN: 1662-5161 ;EISSN: 1662-5161 ;DOI: 10.3389/fnhum.2022.874199 ;PMID: 35992944

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  • Title:
    Slow Firing Single Units Are Essential for Optimal Decoding of Silent Speech
  • Author: Ganesh, Ananya ; Cervantes, Andre J. ; Kennedy, Philip R.
  • Subjects: Accuracy ; Classification ; Cortex (motor) ; Electrodes ; Firings ; Human Neuroscience ; locked-in participants ; Motivation ; neural signals ; Neurotrophic electrode ; Paralysis ; Prostheses ; single unit firings ; Speaking ; Speech ; speech prosthesis
  • Is Part Of: Frontiers in human neuroscience, 2022-08, Vol.16, p.874199-874199
  • Description: The motivation of someone who is locked-in, that is, paralyzed and mute, is to find relief for their loss of function. The data presented in this report is part of an attempt to restore one of those lost functions, namely, speech. An essential feature of the development of a speech prosthesis is optimal decoding of patterns of recorded neural signals during silent or covert speech, that is, speaking “inside the head” with output that is inaudible due to the paralysis of the articulators. The aim of this paper is to illustrate the importance of both fast and slow single unit firings recorded from an individual with locked-in syndrome and from an intact participant speaking silently . Long duration electrodes were implanted in the motor speech cortex for up to 13 years in the locked-in participant. The data herein provide evidence that slow firing single units are essential for optimal decoding accuracy . Additional evidence indicates that slow firing single units can be conditioned in the locked-in participant 5 years after implantation, further supporting their role in decoding.
  • Publisher: Lausanne: Frontiers Research Foundation
  • Language: English
  • Identifier: ISSN: 1662-5161
    EISSN: 1662-5161
    DOI: 10.3389/fnhum.2022.874199
    PMID: 35992944
  • Source: GFMER Free Medical Journals
    PubMed Central
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
    DOAJ Directory of Open Access Journals
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