{"id":525,"date":"2023-04-21T12:32:36","date_gmt":"2023-04-21T10:32:36","guid":{"rendered":"https:\/\/inspiringaudiologyugr.wordpress.com\/?page_id=525"},"modified":"2026-04-09T07:47:55","modified_gmt":"2026-04-09T07:47:55","slug":"speech-aeps","status":"publish","type":"page","link":"https:\/\/wpd.ugr.es\/~sig.proc.audiology\/speech-aeps\/","title":{"rendered":"Speech-AEPs"},"content":{"rendered":"\n
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Title<\/strong>: Towards speech-elicited auditory evoked potentials <\/em>
<<Hacia los potenciales evocados auditivos evocados por voz>>
Acronym<\/strong>: Speech-AEPs
Reference<\/strong>: PID2020-119073GB-I00 \/ MICIN \/ AEI \/ 10.13039\/501100011033
Funding source<\/strong>: Convocatoria 2020 Proyectos de I+D+i, Programa Estatal de Generaci\u00f3n de Conocimiento y Fortalecimiento Cient\u00edfico y Tecnol\u00f3gico del Sistema de I+D+i y de I+D+i Orientada a los Retos de la Sociedad, en el marco del Plan Estatal de Investigaci\u00f3n Cient\u00edfica y T\u00e9cnica y de Innovaci\u00f3n 2017-2020. Agencia Estatal de Investigaci\u00f3n, Ministerio de Ciencia e Innovaci\u00f3n, Gobierno de Espa\u00f1a
Duration<\/strong>: Jul 01, 2021 \u2013 Jun 30, 2024
Amount funded<\/strong>: 33.759,00 \u20ac
Participants<\/strong>: University of Granada
IP<\/strong>: \u00c1ngel de la Torre, Jos\u00e9 C. Segura (left on Sep 10, 2023)
Investigators<\/strong>: \u00c1ngel de la Torre, Jos\u00e9 C. Segura (left on Sep 10, 2023), Sonia Mota, Luz Garc\u00eda, Isaac M. \u00c1lvarez
Collaborators<\/strong>: Joaqu\u00edn T. Valderrama (joined on Jan 1, 2023; and left on Dec 31, 2023), Jos\u00e9 L. Vargas, Marta Mart\u00ednez, Juan Mart\u00edn-Lagos (joined on Jan 1, 2024), Nicol\u00e1s M\u00fcller (joined on Jan 1, 2024) and Francisco A. Chiquero (joined on Jan 1, 2024)<\/p>\n<\/div>\n<\/div>\n\n\n\n

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The main objective<\/strong> of this project is the development of novel methods for recording auditory evoked potentials (AEPs) elicited by natural speech. Recording speech-elicited AEP responses is challenging and requires: (1) advanced signal processing algorithms that enable the simultaneous deconvolution of multiple overlapping AEPs (i.e., multi-response deconvolution); (2) methods for reducing different noise artifacts during EEG acquisition; (3) methods for appropriate categorization of speech events to be considered in multi-response deconvolution; and (4) well-defined protocols for recording and deconvolution of speech-elicited AEP responses for future research and clinical applications. This project considers the specific objectives<\/strong> below.<\/p>\n\n\n\n

1. Develop novel signal processing algorithms that enable fast multi-response deconvolution, appropriate for estimating overlapping transient responses elicited by speech.
2. Develop novel algorithms that attenuate different noise sources, typically present in recorded electroencephalograms, including blink-artifacts and artifacts derived from the electrical network.
3. Define adequate categories of speech-elicited AEPs based on characteristics of the speech stimulus, e.g. “voice-onset”, “speech envelope”, “glottal closure instants”, etc.
4. Analyse and interpret the morphology of the speech-elicited AEPs obtained for different categories in order to advance knowledge in how the central and peripherical human auditory system encodes and process speech.
5. Design easy-to-use protocols for recording and analysis speech-elicited AEPs to facilitate the use of these technologies by other researchers and clinicians.<\/p>\n\n\n\n

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Journal articles<\/strong><\/p>\n\n\n\n

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A phase-demodulation based time drift compensation for the reduction of the 50\/60 Hz power line interference in biopotentials<\/strong>
de la Torre A, Alvarez IM, Mu\u00f1oz-Orellana, JA.
Biomedical Signal Processing & Control (2026<\/strong>) 115. 109423. Open access<\/strong>
[DOI]<\/a> [PDF]<\/a> [Supplementary Material (includes Matlab\/Octave code)]<\/a><\/p>\n\n\n\n

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Multi-response deconvolution of auditory evoked potentials in a reduced representation space<\/strong>
de la Torre A, Sanchez I, Alvarez IM, Segura JC, Valderrama JT, Muller N, Vargas JL.
Journal of the Acoustical Society of America (2024<\/strong>) 155, 3639\u20133653. Open access<\/strong>
[DOI]<\/a> [PDF]<\/a> [Supplementary Material (includes Matlab\/Octave code)]<\/a><\/p>\n\n\n\n

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The hunt for hidden hearing loss in humans: From preclinical studies to effective interventions<\/strong>
Valderrama JT, de la Torre A, McAlpine D.
Frontiers in Neuroscience (2022<\/strong>) 16, 1000304, 13p. Open access<\/strong>
[DOI]<\/a> [PDF]<\/a><\/p>\n\n\n\n

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Auditory brainstem responses obtained with randomised stimulation level<\/strong>
Martinez M, Valderrama JT, Alvarez IM, de la Torre A, Vargas JL.
International Journal of Audiology (2022<\/strong>). <\/p>\n\n\n\n

[DOI]<\/a> [PDF]<\/a> <\/p>\n\n\n\n

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Subspace-constrained deconvolution of auditory evoked potentials<\/strong>
de la Torre A, Valderrama JT, Segura JC, Alvarez IM.
Journal of the Acoustical Society of America (2022<\/strong>) 151, 3745-3757.
[DOI]<\/a> [PDF]<\/a> <\/p>\n\n\n\n

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Patents<\/strong><\/p>\n\n\n\n