Slow phase-locked modulations support selective attention to sound
To make sense of complex soundscapes, listeners must select and attend to task-relevant streams while ignoring uninformative sounds. One possible neural mechanism underlying this process is alignment of endogenous oscillations with the temporal structure of the target sound stream. Such a mechanism...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-05-01
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| Series: | NeuroImage |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1053811922001537 |
| _version_ | 1818696163806674944 |
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| author | Magdalena Kachlicka Aeron Laffere Fred Dick Adam Tierney |
| author_facet | Magdalena Kachlicka Aeron Laffere Fred Dick Adam Tierney |
| author_sort | Magdalena Kachlicka |
| collection | DOAJ |
| description | To make sense of complex soundscapes, listeners must select and attend to task-relevant streams while ignoring uninformative sounds. One possible neural mechanism underlying this process is alignment of endogenous oscillations with the temporal structure of the target sound stream. Such a mechanism has been suggested to mediate attentional modulation of neural phase-locking to the rhythms of attended sounds. However, such modulations are compatible with an alternate framework, where attention acts as a filter that enhances exogenously-driven neural auditory responses. Here we attempted to test several predictions arising from the oscillatory account by playing two tone streams varying across conditions in tone duration and presentation rate; participants attended to one stream or listened passively. Attentional modulation of the evoked waveform was roughly sinusoidal and scaled with rate, while the passive response did not. However, there was only limited evidence for continuation of modulations through the silence between sequences. These results suggest that attentionally-driven changes in phase alignment reflect synchronization of slow endogenous activity with the temporal structure of attended stimuli. |
| first_indexed | 2024-12-17T13:57:00Z |
| format | Article |
| id | doaj.art-da095c419d924f8fa2cc26aa25aa1aa5 |
| institution | Directory Open Access Journal |
| issn | 1095-9572 |
| language | English |
| last_indexed | 2024-12-17T13:57:00Z |
| publishDate | 2022-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | NeuroImage |
| spelling | doaj.art-da095c419d924f8fa2cc26aa25aa1aa52022-12-21T21:45:53ZengElsevierNeuroImage1095-95722022-05-01252119024Slow phase-locked modulations support selective attention to soundMagdalena Kachlicka0Aeron Laffere1Fred Dick2Adam Tierney3Department of Psychological Sciences, Birkbeck, University of London, Malet Street, London WC1E 7HX, EnglandDepartment of Psychological Sciences, Birkbeck, University of London, Malet Street, London WC1E 7HX, EnglandDepartment of Psychological Sciences, Birkbeck, University of London, Malet Street, London WC1E 7HX, England; Division of Psychology & Language Sciences, UCL, Gower Street, London WC1E 6BT, EnglandDepartment of Psychological Sciences, Birkbeck, University of London, Malet Street, London WC1E 7HX, England; Corresponding author.To make sense of complex soundscapes, listeners must select and attend to task-relevant streams while ignoring uninformative sounds. One possible neural mechanism underlying this process is alignment of endogenous oscillations with the temporal structure of the target sound stream. Such a mechanism has been suggested to mediate attentional modulation of neural phase-locking to the rhythms of attended sounds. However, such modulations are compatible with an alternate framework, where attention acts as a filter that enhances exogenously-driven neural auditory responses. Here we attempted to test several predictions arising from the oscillatory account by playing two tone streams varying across conditions in tone duration and presentation rate; participants attended to one stream or listened passively. Attentional modulation of the evoked waveform was roughly sinusoidal and scaled with rate, while the passive response did not. However, there was only limited evidence for continuation of modulations through the silence between sequences. These results suggest that attentionally-driven changes in phase alignment reflect synchronization of slow endogenous activity with the temporal structure of attended stimuli.http://www.sciencedirect.com/science/article/pii/S1053811922001537AttentionAuditoryTemporalEEG |
| spellingShingle | Magdalena Kachlicka Aeron Laffere Fred Dick Adam Tierney Slow phase-locked modulations support selective attention to sound NeuroImage Attention Auditory Temporal EEG |
| title | Slow phase-locked modulations support selective attention to sound |
| title_full | Slow phase-locked modulations support selective attention to sound |
| title_fullStr | Slow phase-locked modulations support selective attention to sound |
| title_full_unstemmed | Slow phase-locked modulations support selective attention to sound |
| title_short | Slow phase-locked modulations support selective attention to sound |
| title_sort | slow phase locked modulations support selective attention to sound |
| topic | Attention Auditory Temporal EEG |
| url | http://www.sciencedirect.com/science/article/pii/S1053811922001537 |
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