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Comparison of visual and auditory modalities for Upper-Alpha EEG-Neurofeedback

2019Conference object Open access
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dc.contributor.authorBucho, Teresa
dc.contributor.authorCaetano, Gina
dc.contributor.authorVourvopoulos, Athanasios
dc.contributor.authorAccoto, Floriana
dc.contributor.authorEsteves, Ines
dc.contributor.authorBermúdez i Badia, Sergi
dc.contributor.authorRosa, Agostinho
dc.contributor.authorFigueiredo, Patricia
dc.date.accessioned2022-07-20T13:10:45Z
dc.date.available2022-07-20T13:10:45Z
dc.date.issued2019
dc.description.abstractElectroencephalography (EEG) neurofeedback (NF) training has been shown to produce long-lasting effects on the improvement of cognitive function as well as the normalization of aberrant brain activity in disease. However, the impact of the sensory modality used as the NF reinforcement signal on training effectiveness has not been systematically investigated. In this work, an EEG-based NF training system was developed targeting the individual upper alpha (UA) band and using either a visual or an auditory reinforcement signal, so as to compare the effects of the two sensory modalities. Sixteen healthy volunteers were randomly assigned to the Visual or Auditory group, where a radius varying sphere or a volume-varying sound, respectively, reflected the relative amplitude of UA measured at EEG electrode Cz. Each participant underwent a total of four NF sessions, of approximately 40 min each, on consecutive days. Both groups showed significant increases in UA at Cz within sessions, and also across sessions. Effects subsequent to NF training were also found beyond the target frequency UA and scalp location Cz, namely in the lower-alpha and theta bands and in posterior brain regions, respectively. Only small differences were found on the EEG between the Visual and Auditory groups, suggesting that auditory reinforcement signals may be as effective as the more commonly used visual signals. The use of auditory NF may potentiate training protocols conducted under mobile conditions, which are now possible due to the increasing availability of wireless EEG systems.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBucho, T., Caetano, G., Vourvopoulos, A., Accoto, F., Esteves, I., Bermúdez i Badia, S. ., ... & Figueiredo, P. (2019, July). Comparison of visual and auditory modalities for Upper-Alpha EEG-Neurofeedback. In 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (pp. 5960-5966). IEEE.pt_PT
dc.identifier.doi10.1109/EMBC.2019.8856671pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/4433
dc.language.isoengpt_PT
dc.publisherIEEEpt_PT
dc.relationLaboratory for Robotics and Engineering Systems
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectElectroencephalography (EEG) neurofeedback (NF) trainingpt_PT
dc.subjectUpper-Alpha EEG-Neurofeedbackpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleComparison of visual and auditory modalities for Upper-Alpha EEG-Neurofeedbackpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleLaboratory for Robotics and Engineering Systems
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEEA%2F50009%2F2013/PT
oaire.citation.endPage5966pt_PT
oaire.citation.startPage5960pt_PT
oaire.citation.title2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameVourvopoulos
person.familyNameBermúdez i Badia
person.familyNameFigueiredo
person.givenNameAthanasios
person.givenNameSergi
person.givenNamePatricia
person.identifier279446
person.identifier239789
person.identifier.ciencia-id5813-A481-A9D3
person.identifier.ciencia-idCA17-5E88-2B37
person.identifier.ciencia-id231D-806E-85DC
person.identifier.orcid0000-0001-9676-8599
person.identifier.orcid0000-0003-4452-0414
person.identifier.orcid0000-0002-0743-0869
person.identifier.ridF-3872-2017
person.identifier.ridC-8681-2018
person.identifier.ridA-1194-2013
person.identifier.scopus-author-id48762198300
person.identifier.scopus-author-id6506360007
person.identifier.scopus-author-id7003529050
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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