ArticleScientific reports2024
Exploring the correlation and causation between alpha oscillations and one-second time perception through EEG and tACS.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Combined Use of Electroencephalography and Transcranial Electrical Stimulation: A Systematic Review.Sensors (Basel, Switzerland) · 2025Pooled it
- Emotional Blunting and Time Estimation in Depression.Biological psychiatry global open science · 2026Article
- Article
- Individual alpha frequency predicts the sensitivity of time perception.Imaging neuroscience (Cambridge, Mass.)Article
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Authors and funding
3 authors.
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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.
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