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  Single-channel in-ear-EEG detects the focus of auditory attention to concurrent tone streams and mixed speech

Fiedler, L., Wöstmann, M., Graversen, C., Brandmeyer, A., Lunner, T., & Obleser, J. (2017). Single-channel in-ear-EEG detects the focus of auditory attention to concurrent tone streams and mixed speech. Journal of Neural Engineering, 14(3): 036020. doi:10.1088/1741-2552/aa66dd.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-A90D-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-DBF9-D
Genre: Journal Article

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 Creators:
Fiedler, Lorenz1, 2, Author              
Wöstmann, Malte1, 2, Author              
Graversen, Carina3, Author
Brandmeyer, Alex2, Author              
Lunner, Thomas3, Author
Obleser, Jonas1, 2, Author              
Affiliations:
1Department of Psychology, University of Lübeck, Germany, ou_persistent22              
2Max Planck Research Group Auditory Cognition, MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, DE, ou_751545              
3Eriksholm Research Centre, Snekkersten, Denmark, ou_persistent22              

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 Abstract: Conventional, multi-channel scalp electroencephalography (EEG) allows the identification of the attended speaker in concurrent-listening ('cocktail party') scenarios. This implies that EEG might provide valuable information to complement hearing aids with some form of EEG and to install a level of neuro-feedback. APPROACH: To investigate whether a listener's attentional focus can be detected from single-channel hearing-aid-compatible EEG configurations, we recorded EEG from three electrodes inside the ear canal ('in-Ear-EEG') and additionally from 64 electrodes on the scalp. In two different, concurrent listening tasks, participants (n  =  7) were fitted with individualized in-Ear-EEG pieces and were either asked to attend to one of two dichotically-presented, concurrent tone streams or to one of two diotically-presented, concurrent audiobooks. A forward encoding model was trained to predict the EEG response at single EEG channels. MAIN RESULTS: Each individual participants' attentional focus could be detected from single-channel EEG response recorded from short-distance configurations consisting only of a single in-Ear-EEG electrode and an adjacent scalp-EEG electrode. The differences in neural responses to attended and ignored stimuli were consistent in morphology (i.e. polarity and latency of components) across subjects. SIGNIFICANCE: In sum, our findings show that the EEG response from a single-channel, hearing-aid-compatible configuration provides valuable information to identify a listener's focus of attention.

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Language(s): eng - English
 Dates: 2016-12-152017-03-152017-04-06
 Publication Status: Published online
 Pages: -
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 Rev. Method: -
 Identifiers: DOI: 10.1088/1741-2552/aa66dd
PMID: 28384124
Other: Epub 2017
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Funding organization : VW Foundation
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Funding organization : Oticon Foundation

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Title: Journal of Neural Engineering
Source Genre: Journal
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Publ. Info: Bristol : Institute of Physics Publishing
Pages: - Volume / Issue: 14 (3) Sequence Number: 036020 Start / End Page: - Identifier: ISSN: 1741-2552
CoNE: https://pure.mpg.de/cone/journals/resource/17412552