A high-performance neuroprosthesis for speech decoding and avatar control

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A high-performance neuroprosthesis for speech decoding and avatar control
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  • 📰 Nature
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A study using high-density surface recordings of the speech cortex in a person with limb and vocal paralysis demonstrates real-time decoding of brain activity into text, speech sounds and orofacial movements.

This file contains: a list of investigators; Supplementary Notes 1 and 2 providing additional information about the participant in this study, including her residual articulatory capacity and current assistive communication methods; Methods providing additional methods to support the main results in the manuscript, including text corpora, text decoding, NATO code word and hand movement decoding, synthesis and avatar methods; Figs.

A classifier processes neural activity associated with the attempt to predict probabilities across the 30 possible targets. Afterwards, the probabilities for the top three classes are shown as a bar chart on the bottom of the screen.A demonstration of real-time speech synthesis and avatar animation from brain activity. In the task, the participant attempts to silently say sentences shown on the screen from the 529-phrase-AAC sentence set.

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