Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
Contents of Visual Predictions Oscillate at Alpha Frequencies. |
| Συγγραφείς: |
Hetenyi, Dorottya, Haarsma, Joost, Kok, Peter |
| Πηγή: |
Journal of Neuroscience; 12/3/2025, Vol. 45 Issue 49, p1-12, 12p |
| Θεματικοί όροι: |
Magnetoencephalography, Alpha rhythm, Expectation (Psychology), Form perception, Sensorimotor integration, Fluctuations (Physics), Cognitive ability |
| Περίληψη: |
Predictions of future events have a major impact on how we process sensory signals. However, it remains unclear how the brain keeps predictions online in anticipation of future inputs. Here, we combined magnetoencephalography (MEG) and multivariate decoding techniques to investigate the content of perceptual predictions and their frequency characteristics. Thirty-two participants (23 female) were engaged in a shape discrimination task, while auditory cues predicted which specific shape would likely appear. Frequency analysis revealed significant oscillatory fluctuations of predicted shape representations in the pre-stimulus window in the alpha band (10-11 Hz). Furthermore, we found that this stimulus-specific alpha power was linked to expectation effects on shape discrimination behavior. Our findings demonstrate that sensory predictions are embedded in pre-stimulus alpha oscillations and modulate subsequent perceptual performance, providing a neural mechanism through which the brain deploys perceptual predictions. [ABSTRACT FROM AUTHOR] |
|
Copyright of Journal of Neuroscience is the property of Society for Neuroscience and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Βάση Δεδομένων: |
Complementary Index |