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{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,9,12]],"date-time":"2024-09-12T19:10:46Z","timestamp":1726168246598},"reference-count":50,"publisher":"World Scientific Pub Co Pte Lt","issue":"07","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Neur. Syst."],"published-print":{"date-parts":[[2021,7]]},"abstract":" Recent technological advances show the feasibility of offline decoding speech from neuronal signals, paving the way to the development of chronically implanted speech brain computer interfaces (sBCI). Two key steps that still need to be addressed for the online deployment of sBCI are, on the one hand, the definition of relevant design parameters of the recording arrays, on the other hand, the identification of robust physiological markers of the patient\u2019s intention to speak, which can be used to online trigger the decoding process. To address these issues, we acutely recorded speech-related signals from the frontal cortex of two human patients undergoing awake neurosurgery for brain tumors using three different micro-electrocorticographic ([Formula: see text]ECoG) devices. First, we observed that, at the smallest investigated pitch (600[Formula: see text][Formula: see text]m), neighboring channels are highly correlated, suggesting that more closely spaced electrodes would provide some redundant information. Second, we trained a classifier to recognize speech-related motor preparation from high-gamma oscillations (70\u2013150[Formula: see text]Hz), demonstrating that these neuronal signals can be used to reliably predict speech onset. Notably, our model generalized both across subjects and recording devices showing the robustness of its performance. These findings provide crucial information for the design of future online sBCI. <\/jats:p>","DOI":"10.1142\/s0129065721500258","type":"journal-article","created":{"date-parts":[[2021,6,16]],"date-time":"2021-06-16T00:48:35Z","timestamp":1623804515000},"page":"2150025","source":"Crossref","is-referenced-by-count":6,"title":["Prediction of Speech Onset by Micro-Electrocorticography of the Human Brain"],"prefix":"10.1142","volume":"31","author":[{"given":"Emanuela","family":"Delfino","sequence":"first","affiliation":[{"name":"Center for Translational Neurophysiology, Istituto Italiano di Tecnologia, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"},{"name":"Section of Physiology, University of Ferrara, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"}]},{"given":"Aldo","family":"Pastore","sequence":"additional","affiliation":[{"name":"Center for Translational Neurophysiology, Istituto Italiano di Tecnologia, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"},{"name":"Section of Physiology, University of Ferrara, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"}]},{"given":"Elena","family":"Zucchini","sequence":"additional","affiliation":[{"name":"Center for Translational Neurophysiology, Istituto Italiano di Tecnologia, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"},{"name":"Section of Physiology, University of Ferrara, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"}]},{"given":"Maria Francisca Porto","family":"Cruz","sequence":"additional","affiliation":[{"name":"Center for Translational Neurophysiology, Istituto Italiano di Tecnologia, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"},{"name":"Section of Physiology, University of Ferrara, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"},{"name":"Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering (IMTEK), University of Freiburg, Georges-K\u00f6hler-Allee 102, Freiburg im Breisgau 79110, Germany"}]},{"given":"Tamara","family":"Ius","sequence":"additional","affiliation":[{"name":"Struttura Complessa di Neurochirurgia, Azienda Ospedaliero-Universitaria Santa Maria, della Misericordia, Piazzale Santa Maria, della Misericordia 15, Udine 33100, Italy"}]},{"given":"Maria","family":"Vomero","sequence":"additional","affiliation":[{"name":"Bioelectronic Systems Laboratory, Columbia University, 500 West 120th Street, New York, NY 10027, USA"}]},{"given":"Alessandro","family":"D\u2019Ausilio","sequence":"additional","affiliation":[{"name":"Center for Translational Neurophysiology, Istituto Italiano di Tecnologia, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"},{"name":"Section of Physiology, University of Ferrara, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"}]},{"given":"Antonino","family":"Casile","sequence":"additional","affiliation":[{"name":"Center for Translational Neurophysiology, Istituto Italiano di Tecnologia, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"}]},{"given":"Miran","family":"Skrap","sequence":"additional","affiliation":[{"name":"Struttura Complessa di Neurochirurgia, Azienda Ospedaliero-Universitaria Santa Maria, della Misericordia, Piazzale Santa Maria, della Misericordia 15, Udine 33100, Italy"}]},{"given":"Thomas","family":"Stieglitz","sequence":"additional","affiliation":[{"name":"Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering (IMTEK), University of Freiburg, Georges-K\u00f6hler-Allee 102, Freiburg im Breisgau 79110, Germany"},{"name":"BrainLinks-BrainTools Center, University of Freiburg, Georges-K\u00f6hler-Allee 80, Freiburg im Breisgau 79110, Germany"}]},{"given":"Luciano","family":"Fadiga","sequence":"additional","affiliation":[{"name":"Center for Translational Neurophysiology, Istituto Italiano di Tecnologia, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"},{"name":"Section of Physiology, University of Ferrara, Via Fossato di Mortara 17-19, Ferrara 44121, Italy"}]}],"member":"219","published-online":{"date-parts":[[2021,6,14]]},"reference":[{"key":"S0129065721500258BIB001","doi-asserted-by":"publisher","DOI":"10.1038\/s41586-019-1119-1"},{"key":"S0129065721500258BIB002","doi-asserted-by":"publisher","DOI":"10.1088\/1741-2552\/ab0c59"},{"key":"S0129065721500258BIB003","doi-asserted-by":"publisher","DOI":"10.1515\/revneuro-2013-0032"},{"key":"S0129065721500258BIB004","doi-asserted-by":"publisher","DOI":"10.1007\/s13311-018-00692-2"},{"key":"S0129065721500258BIB005","doi-asserted-by":"publisher","DOI":"10.1016\/j.bandl.2016.06.003"},{"key":"S0129065721500258BIB006","first-page":"1","volume":"64","author":"Hill N. 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