Cited by 35EEG and Brain-Computer InterfacesVoice and Speech DisordersAssistive Technology in Communication and Mobility

Toward a Speech Neuroprosthesis

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Chang, Edward F., Anumanchipalli, Gopala K.·2020·JAMA

Abstract

Spoken communication is a basic human function.As such, loss of the ability to speak can be devastating for affected individuals.Stroke or neurodegenerative conditions, such as amyotrophic lateral sclerosis, can result in paralysis or dysfunction of vocal structures that produce speech.Current options are assistive devices that use residual movements, for example, cheek twitches or eye movements, to navigate alphabet displays to type out words. 1 While some users depend on these alternative communication approaches, these devices tend to be slow, error-prone, and laborious.A next generation of rehabilitative technologies currently being developed, called brain-computer interfaces (BCIs), directly read out brain signals to replace lost function.The application of neuroprostheses to restore speech has the potential to improve the quality of life of patients with neurological disease, but also including patients who have lost speech from vocal tract injury (eg, from cancer or cancer-related surgery).

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Crossref · 10.1001/jama.2019.19813

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  • Communication rates for neuroprostheses controlled by attempted hand movements remain slower and less expressive than natural speech.

    “However, communication rates for neuroprostheses controlled by attempted hand movements remain slower and less expressive than natural speech10.”

    From The speech neuroprosthesis (2024) · cites this paper as [10]

    In “Toward a Speech Neuroprosthesis” (page unavailable), the paper says neuroprostheses that decode arm-movement signals to control a spelling cursor achieve under 10 words per minute, versus 120–150 words per minute for natural speech. It describes speech features such as prosodic intonation, but does not directly establish that hand-movement-controlled neuroprostheses are less expressive. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Speech enables efficient and rapid communication at rates of around 150-200 words per minute in conversational settings.

    “Speech enables efficient and rapid communication at rates of around 150–200 words per minute (WPM) in conversational settings10.”

    From The speech neuroprosthesis (2024) · cites this paper as [10]

    The 'Toward a Speech Neuroprosthesis' section describes speech as efficient, rapid communication and gives natural speaking rates of 120–150 words per minute in healthy speakers. It does not support the cited range of 150–200 words per minute or specify that rate for conversational settings. No page number is supplied in our copy. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Able speakers often speak at rates around 150 WPM during conversational speech.

    “Able speakers often speak at rates of around 150 WPM during conversational speech10; however, for individuals with vocal-tract paralysis, their maximal rate of attempted speech can vary considerably and may depend on their residual articulatory capacities and degree of comfort4,133,134.”

    From The speech neuroprosthesis (2024) · cites this paper as [10]

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Research works printed but not linked: 1

  1. [3]Mugler EM. Investigation of Speech for Communicative BrainComputer Interface [doctoral dissertation]. Chicago, IL: University of Illinois at Chicago; 2014.

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Authors
Chang, E. F., & Anumanchipalli, G. K.
Affiliations
University of California, San Francisco (US)
Venue
JAMA
Published
2020-02-04
Volume
323
Issue
5
Pages
413
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W2997091249
Cited by
35
References
7
Citations by year
2026: 5 · 2025: 5 · 2024: 5 · 2023: 5 · 2022: 6 · 2021: 4 · 2020: 5
FWCI
2.18
Type
journal article
Language
en
Open access
Locations
  • JAMA (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Neurological Disorders and Stroke (U01NS098971)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › EEG and Brain-Computer Interfaces
  • Health Sciences › Medicine › Physiology › Voice and Speech Disorders
  • Health Sciences › Health Professions › Occupational Therapy › Assistive Technology in Communication and Mobility
Keywords
brain-computer interface, speech recovery, amyotrophic lateral sclerosis, stroke, paralysis, assistive communication devices, neurorehabilitation
MeSH terms
Humans, Speech, Speech Disorders, Neural Prostheses

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