Thanks to technological development cochlear implant (CI) recipients have obtainedimpressive improvement in performances in word in noise recognition tasks. It is worthy to investigate neurophysiological responses underlying these performances, since those are not a sensitive descriptors of the effort experienced by subjects. Listening effort levels, in fact, may change between CI processing conditions for which speech intelligibility remains constant. Aim of the present study was to investigate the EEG patterns relative to Theta activity and Workload index (IWL, the ratio between frontal Theta and parietal Alpha) levels in response to the performing of a word in noise recognition task when employing consecutive generations of CI sound processors (Freedom, CP810, CP910 and Kanso) and using or not the noise reduction filter function. Results suggest that technological development produced a trend of higher levels of processing, as suggested by Theta values obtained in correspondence of the Kanso sound processor use, in particular when the Noise Reduction Filter function was not used. Furthermore, the workload levels, as indexed by the IWL values, were lower when the Noise Reduction Filter function was used. These two considerations support the usefulness of the employment of such EEG estimations for the assessment of clinical devices development

Is the younger the less effortful? An electroencephalographic ccomparison among consecutive generations of cochlear implant sound processors / Cartocci, Giulia; Maglione, ANTON GIULIO; Modica, Enrica; Rossi, Dario; Quaranta, Nicola; Zinfollino, Anna Maria; Ardito, Adriana; Vozzi, Alessia; Ronca, Vincenzo; Babiloni, Fabio. - In: INTERNATIONAL JOURNAL OF BIOELECTROMAGNETISM. - ISSN 1456-7857. - 19:1(2017), pp. 11-17.

Is the younger the less effortful? An electroencephalographic ccomparison among consecutive generations of cochlear implant sound processors

Giulia Cartocci
;
Anton Giulio Maglione;Enrica Modica;Dario Rossi;Maria Zinfollino;Alessia Vozzi;Vincenzo Ronca;Fabio Babiloni
2017

Abstract

Thanks to technological development cochlear implant (CI) recipients have obtainedimpressive improvement in performances in word in noise recognition tasks. It is worthy to investigate neurophysiological responses underlying these performances, since those are not a sensitive descriptors of the effort experienced by subjects. Listening effort levels, in fact, may change between CI processing conditions for which speech intelligibility remains constant. Aim of the present study was to investigate the EEG patterns relative to Theta activity and Workload index (IWL, the ratio between frontal Theta and parietal Alpha) levels in response to the performing of a word in noise recognition task when employing consecutive generations of CI sound processors (Freedom, CP810, CP910 and Kanso) and using or not the noise reduction filter function. Results suggest that technological development produced a trend of higher levels of processing, as suggested by Theta values obtained in correspondence of the Kanso sound processor use, in particular when the Noise Reduction Filter function was not used. Furthermore, the workload levels, as indexed by the IWL values, were lower when the Noise Reduction Filter function was used. These two considerations support the usefulness of the employment of such EEG estimations for the assessment of clinical devices development
2017
alpha; theta; workload; word in noise recognition; deafness; noise reduction filter
01 Pubblicazione su rivista::01a Articolo in rivista
Is the younger the less effortful? An electroencephalographic ccomparison among consecutive generations of cochlear implant sound processors / Cartocci, Giulia; Maglione, ANTON GIULIO; Modica, Enrica; Rossi, Dario; Quaranta, Nicola; Zinfollino, Anna Maria; Ardito, Adriana; Vozzi, Alessia; Ronca, Vincenzo; Babiloni, Fabio. - In: INTERNATIONAL JOURNAL OF BIOELECTROMAGNETISM. - ISSN 1456-7857. - 19:1(2017), pp. 11-17.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1224913
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