Decoding speech from spike-based neural population recordings in secondary auditory cortex of non-human primates.
Commun Biol
; 2: 466, 2019.
Article
de En
| MEDLINE
| ID: mdl-31840111
ABSTRACT
Direct electronic communication with sensory areas of the neocortex is a challenging ambition for brain-computer interfaces. Here, we report the first successful neural decoding of English words with high intelligibility from intracortical spike-based neural population activity recorded from the secondary auditory cortex of macaques. We acquired 96-channel full-broadband population recordings using intracortical microelectrode arrays in the rostral and caudal parabelt regions of the superior temporal gyrus (STG). We leveraged a new neural processing toolkit to investigate the choice of decoding algorithm, neural preprocessing, audio representation, channel count, and array location on neural decoding performance. The presented spike-based machine learning neural decoding approach may further be useful in informing future encoding strategies to deliver direct auditory percepts to the brain as specific patterns of microstimulation.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Cortex auditif
/
Parole
/
Neurones
Limites:
Animals
Langue:
En
Journal:
Commun Biol
Année:
2019
Type de document:
Article