Alpha and Theta EEG Variations as Indices of Listening Effort to Be Implemented in Neurofeedback Among Cochlear Implant Users

Author(s):  
Giulia Cartocci ◽  
Anton Giulio Maglione ◽  
Dario Rossi ◽  
Enrica Modica ◽  
Gianluca Borghini ◽  
...  
2013 ◽  
Vol 56 (4) ◽  
pp. 1075-1084 ◽  
Author(s):  
Carina Pals ◽  
Anastasios Sarampalis ◽  
Deniz Başkent

Purpose Fitting a cochlear implant (CI) for optimal speech perception does not necessarily optimize listening effort. This study aimed to show that listening effort may change between CI processing conditions for which speech intelligibility remains constant. Method Nineteen normal-hearing participants listened to CI simulations with varying numbers of spectral channels. A dual-task paradigm combining an intelligibility task with either a linguistic or nonlinguistic visual response-time (RT) task measured intelligibility and listening effort. The simultaneously performed tasks compete for limited cognitive resources; changes in effort associated with the intelligibility task are reflected in changes in RT on the visual task. A separate self-report scale provided a subjective measure of listening effort. Results All measures showed significant improvements with increasing spectral resolution up to 6 channels. However, only the RT measure of listening effort continued improving up to 8 channels. The effects were stronger for RTs recorded during listening than for RTs recorded between listening. Conclusion The results suggest that listening effort decreases with increased spectral resolution. Moreover, these improvements are best reflected in objective measures of listening effort, such as RTs on a secondary task, rather than intelligibility scores or subjective effort measures.


2018 ◽  
Vol 39 (5) ◽  
pp. 922-934 ◽  
Author(s):  
Sarah E. Hughes ◽  
Hayley A. Hutchings ◽  
Frances L. Rapport ◽  
Catherine M. McMahon ◽  
Isabelle Boisvert

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254162
Author(s):  
Brandon T. Paul ◽  
Joseph Chen ◽  
Trung Le ◽  
Vincent Lin ◽  
Andrew Dimitrijevic

Listening to speech in noise is effortful for individuals with hearing loss, even if they have received a hearing prosthesis such as a hearing aid or cochlear implant (CI). At present, little is known about the neural functions that support listening effort. One form of neural activity that has been suggested to reflect listening effort is the power of 8–12 Hz (alpha) oscillations measured by electroencephalography (EEG). Alpha power in two cortical regions has been associated with effortful listening—left inferior frontal gyrus (IFG), and parietal cortex—but these relationships have not been examined in the same listeners. Further, there are few studies available investigating neural correlates of effort in the individuals with cochlear implants. Here we tested 16 CI users in a novel effort-focused speech-in-noise listening paradigm, and confirm a relationship between alpha power and self-reported effort ratings in parietal regions, but not left IFG. The parietal relationship was not linear but quadratic, with alpha power comparatively lower when effort ratings were at the top and bottom of the effort scale, and higher when effort ratings were in the middle of the scale. Results are discussed in terms of cognitive systems that are engaged in difficult listening situations, and the implication for clinical translation.


2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
H. Christiaan Stronks ◽  
Eline Apperloo ◽  
Raphael Koning ◽  
Jeroen J. Briaire ◽  
Johan H. M. Frijns

2020 ◽  
Vol 20 (11) ◽  
pp. 1409
Author(s):  
Jessica Defenderfer ◽  
Mary McGarr ◽  
A. Caglar Tas

2020 ◽  
Vol 24 ◽  
pp. 233121652090461
Author(s):  
Carina Pals ◽  
Anastasios Sarampalis ◽  
Andy Beynon ◽  
Thomas Stainsby ◽  
Deniz Başkent

2020 ◽  
Author(s):  
T Weißgerber ◽  
A Eichenauer ◽  
T Stöver ◽  
U Baumann

BMJ Open ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. e028881 ◽  
Author(s):  
Sarah E Hughes ◽  
Frances Rapport ◽  
Alan Watkins ◽  
Isabelle Boisvert ◽  
Catherine M McMahon ◽  
...  

IntroductionListening effort may be defined as the cognitive resources needed to understand an auditory message. A sustained requirement for listening effort is known to have a negative impact on individuals’ sense of social connectedness, well-being and quality of life. A number of hearing-specific patient-reported outcome measures (PROMs) exist currently; however, none adequately assess listening effort as it is experienced in the listening situations of everyday life. The Listening Effort Questionnaire-Cochlear Implant (LEQ-CI) is a new, hearing-specific PROM designed to assess perceived listening effort as experienced by adult CI patients. It is the aim of this study to conduct the first psychometric evaluation of the LEQ-CI’s measurement properties.Methods and analysisThis study is a phased, prospective, multi-site validation study in a UK population of adults with severe-profound sensorineural hearing loss who meet local candidacy criteria for CI. In phase 1, 250 CI patients from four National Health Service CI centres will self-complete a paper version of the LEQ-CI. Factor analysis will establish unidimensionality and Rasch analysis will evaluate item fit, differential item functioning, response scale ordering, targeting of persons and items, and reliability. Classical test theory methods will assess acceptability/data completeness, scaling assumptions, targeting and internal consistency reliability. Phase 1 results will inform refinements to the LEQ-CI. In phase 2, a new sample of adult CI patients (n=100) will self-complete the refined LEQ-CI, the Speech, Spatial and Qualities of Hearing Scale, the Nijmegen Cochlear Implant Questionnaire and the Fatigue Assessment Scale to assess construct validity.Ethics and disseminationThis study was approved by the Abertawe Bro Morgannwg University Health Board/Swansea University Joint Study Review Committee and the Newcastle and North Tyneside 2 Research Ethics Committee, Ref: 18/NE/0320. Dissemination will be in high-quality journals, conference presentations and SEH’s doctoral dissertation.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Domenico Cuda ◽  
Alessandra Murri ◽  
Anna Mainardi ◽  
Josef Chalupper

The population of unilateral cochlear implant (CI) users with aidable residual hearing in the contralateral ear is continuously growing. Aiding the contralateral ear with a hearing aid has been shown to provide substantial benefit regarding speech intelligibility in quiet and in noise, sound quality, localization ability and listening effort. In this study, a dedicated hearing aid with the accompanying fitting prescription, tailored to the needs of bimodal listeners was evaluated in nine bimodal CI users. Speech intelligibility scores in noise revealed on-par performance of the dedicated bimodal fitting compared to the clinical standard prescription. 78% of the bimodal CI users preferred the dedicated bimodal fitting over the clinical standard. The minimal subject-specific finetuning effort required during the dedicated bimodal fitting process emphasizes the clinical efficiency.


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