Exploring the correlation and causation between alpha oscillations and one-second time perception through EEG and tACS
Abstract Alpha oscillations have been implicated in time perception, yet a consensus on their precise role remains elusive. This study directly investigates this relationship by examining the impact of alpha oscillations on time perception. Resting-state EEG recordings were used to extract peak alph...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-04-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-57715-6 |
| _version_ | 1797219804835217408 |
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| author | Ehsan Mokhtarinejad Mahgol Tavakoli Amir Hossein Ghaderi |
| author_facet | Ehsan Mokhtarinejad Mahgol Tavakoli Amir Hossein Ghaderi |
| author_sort | Ehsan Mokhtarinejad |
| collection | DOAJ |
| description | Abstract Alpha oscillations have been implicated in time perception, yet a consensus on their precise role remains elusive. This study directly investigates this relationship by examining the impact of alpha oscillations on time perception. Resting-state EEG recordings were used to extract peak alpha frequency (PAF) and peak alpha power (PAP) characteristics. Participants then performed a time generalization task under transcranial alternating current stimulation (tACS) at frequencies of PAF−2, PAF, and PAF+2, as well as a sham condition. Results revealed a significant correlation between PAP and accuracy, and between PAF and precision of one-second time perception in the sham condition. This suggests that alpha oscillations may influence one-second time perception by modulating their frequency and power. Interestingly, these correlations weakened with real tACS stimulations, particularly at higher frequencies. A second analysis aimed to establish a causal relationship between alpha peak modulation by tACS and time perception using repeated measures ANOVAs, but no significant effect was observed. Results were interpreted according to the state-dependent networks and internal clock model. |
| first_indexed | 2024-04-24T12:39:28Z |
| format | Article |
| id | doaj.art-7cf559da924345ef809dd2792f0b3156 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-24T12:39:28Z |
| publishDate | 2024-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-7cf559da924345ef809dd2792f0b31562024-04-07T11:19:32ZengNature PortfolioScientific Reports2045-23222024-04-0114111610.1038/s41598-024-57715-6Exploring the correlation and causation between alpha oscillations and one-second time perception through EEG and tACSEhsan Mokhtarinejad0Mahgol Tavakoli1Amir Hossein Ghaderi2Department of Psychology, Faculty of Education and Psychology, University of IsfahanDepartment of Psychology, Faculty of Education and Psychology, University of IsfahanDepartment of Psychology, Faculty of Education and Psychology, University of IsfahanAbstract Alpha oscillations have been implicated in time perception, yet a consensus on their precise role remains elusive. This study directly investigates this relationship by examining the impact of alpha oscillations on time perception. Resting-state EEG recordings were used to extract peak alpha frequency (PAF) and peak alpha power (PAP) characteristics. Participants then performed a time generalization task under transcranial alternating current stimulation (tACS) at frequencies of PAF−2, PAF, and PAF+2, as well as a sham condition. Results revealed a significant correlation between PAP and accuracy, and between PAF and precision of one-second time perception in the sham condition. This suggests that alpha oscillations may influence one-second time perception by modulating their frequency and power. Interestingly, these correlations weakened with real tACS stimulations, particularly at higher frequencies. A second analysis aimed to establish a causal relationship between alpha peak modulation by tACS and time perception using repeated measures ANOVAs, but no significant effect was observed. Results were interpreted according to the state-dependent networks and internal clock model.https://doi.org/10.1038/s41598-024-57715-6 |
| spellingShingle | Ehsan Mokhtarinejad Mahgol Tavakoli Amir Hossein Ghaderi Exploring the correlation and causation between alpha oscillations and one-second time perception through EEG and tACS Scientific Reports |
| title | Exploring the correlation and causation between alpha oscillations and one-second time perception through EEG and tACS |
| title_full | Exploring the correlation and causation between alpha oscillations and one-second time perception through EEG and tACS |
| title_fullStr | Exploring the correlation and causation between alpha oscillations and one-second time perception through EEG and tACS |
| title_full_unstemmed | Exploring the correlation and causation between alpha oscillations and one-second time perception through EEG and tACS |
| title_short | Exploring the correlation and causation between alpha oscillations and one-second time perception through EEG and tACS |
| title_sort | exploring the correlation and causation between alpha oscillations and one second time perception through eeg and tacs |
| url | https://doi.org/10.1038/s41598-024-57715-6 |
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