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    Effects of auditory selective attention on neural phase: individual differences and short-term training

    Laffere, A. and Dick, Frederic and Tierney, Adam (2020) Effects of auditory selective attention on neural phase: individual differences and short-term training. NeuroImage , ISSN 1053-8119. (In Press)

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    How does the brain follow a sound that is mixed with others in a noisy environment? One possible strategy is to allocate attention to task-relevant time intervals. Prior work has linked auditory selective attention to alignment of neural modulations with stimulus temporal structure. However, since this prior research used relatively easy tasks and focused on analysis of main effects of attention across participants, relatively little is known about the neural foundations of individual differences in auditory selective attention. Here we investigated individual differences in auditory selective attention by asking participants to perform a 1-back task on a target auditory stream while ignoring a distractor auditory stream presented 180 degrees out of phase. Neural entrainment to the attended auditory stream was strongly linked to individual differences in task performance. Some variability in performance was accounted for by degree of musical training, suggesting a link between long-term auditory experience and auditory selective attention. To investigate whether short-term improvements in auditory selective attention are possible, we gave participants two hours of auditory selective attention training and found improvements in both task performance and enhancements of the effects of attention on neural phase angle. Our results suggest that although there exist large individual differences in auditory selective attention and attentional modulation of neural phase angle, this skill improves after a small amount of targeted training.


    Item Type: Article
    Keyword(s) / Subject(s): attention, training, auditory, EEG, rhythm
    School: School of Science > Psychological Sciences
    Depositing User: Adam Tierney
    Date Deposited: 05 Mar 2020 15:51
    Last Modified: 13 Jun 2021 03:57


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