Operant measurement of auditory threshold in prelingually deaf users of cochlear implants: II

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dc.contributor.authorda Silva, Wagner R.
dc.contributor.authorde Souza, Deisy G.
dc.contributor.authorBevilacqua, Maria Cecília
dc.contributor.authorLopes Jr., Jair [UNESP]
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:25:27Z
dc.date.available2014-05-27T11:25:27Z
dc.date.issued2011-01-01
dc.description.abstractTwo experiments evaluated an operant procedure for establishing stimulus control using auditory and electrical stimuli as a baseline for measuring the electrical current threshold of electrodes implanted in the cochlea. Twenty-one prelingually deaf children, users of cochlear implants, learned a Go/No Go auditory discrimination task (i.e., pressing a button in the presence of the stimulus but not in its absence). When the simple discrimination baseline became stable, the electrical current was manipulated in descending and ascending series according to an adapted staircase method. Thresholds were determined for three electrodes, one in each location in the cochlea (basal, medial, and apical). Stimulus control was maintained within a certain range of decreasing electrical current but was eventually disrupted. Increasing the current recovered stimulus control, thus allowing the determination of a range of electrical currents that could be defined as the threshold. The present study demonstrated the feasibility of the operant procedure combined with a psychophysical method for threshold assessment, thus contributing to the routine fitting and maintenance of cochlear implants within the limitations of a hospital setting.en
dc.description.affiliationInstituto Nacional de Ciencia e Tecnologia sobre Comportamento, Cognicao e Ensino (INCTECCE) Universidade Federal de São Carlos
dc.description.affiliationInstituto Nacional de Ciencia e Tecnologia sobre Comportamento, Cognicao e Ensino (INCTECCE) Centro de Pesquisas Audiológicas Universidade de São Paulo (Bauru)
dc.description.affiliationUniversidade Estadual Júlio de Mesquita Filho UNESP/Bauru
dc.description.affiliationUnespUniversidade Estadual Júlio de Mesquita Filho UNESP/Bauru
dc.identifierhttp://dx.doi.org/10.3922/j.psns.2011.1.011
dc.identifier.citationPsychology and Neuroscience, v. 4, n. 1, 2011.
dc.identifier.doi10.3922/j.psns.2011.1.011
dc.identifier.file2-s2.0-79959745960.pdf
dc.identifier.issn1984-3054
dc.identifier.issn1983-3288
dc.identifier.scopus2-s2.0-79959745960
dc.identifier.urihttp://hdl.handle.net/11449/72267
dc.language.isoeng
dc.relation.ispartofPsychology and Neuroscience
dc.relation.ispartofsjr0,245
dc.relation.ispartofsjr0,245
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCochlear implant
dc.subjectDeaf children
dc.subjectGo/No Go
dc.subjectMouse click
dc.subjectSimple auditory discrimination
dc.subjectThreshold measurement
dc.subjectauditory discrimination
dc.subjectauditory stimulation
dc.subjectauditory threshold
dc.subjectchild
dc.subjectclinical article
dc.subjectcochlea prosthesis
dc.subjectcontrolled clinical trial
dc.subjectcontrolled study
dc.subjectelectrode
dc.subjectelectrostimulation
dc.subjectfeasibility study
dc.subjectfemale
dc.subjecthuman
dc.subjectinfant
dc.subjectinstrumental conditioning
dc.subjectlearning
dc.subjectmale
dc.subjectperception deafness
dc.subjectpreschool child
dc.subjectpsychophysics
dc.subjectsound intensity
dc.subjectstimulus response
dc.subjecttask performance
dc.titleOperant measurement of auditory threshold in prelingually deaf users of cochlear implants: IIen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/pn/paboutj.htm

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