Cited by 120Neural dynamics and brain functionVisual perception and processing mechanismsMultisensory perception and integration

Expecting to See a Letter: Alpha Oscillations as Carriers of Top-Down Sensory Predictions

Mayer, Anna, Schwiedrzik, Caspar M., Wibral, Michael, Singer, Wolf, Melloni, Lucia·2016·Cerebral Cortex

Abstract

Predictions strongly influence perception. However, the neurophysiological processes that implement predictions remain underexplored. It has been proposed that high- and low-frequency neuronal oscillations act as carriers of sensory evidence and top-down predictions, respectively (von Stein and Sarnthein 2000; Bastos et al. 2012). However, evidence for the latter hypothesis remains scarce. In particular, it remains to be shown whether slow prestimulus alpha oscillations in task-relevant brain regions are stronger in the presence of predictions, whether they influence early categorization processes, and whether this interplay indeed boosts perception. Here, we directly address these questions by manipulating subjects' prior expectations about the identity of visually presented letters while collecting magnetoencephalographic recordings. We find that predictions lead to increased prestimulus alpha oscillations in a multisensory network representing grapheme/phoneme associations. Furthermore, alpha power interacts with stimulus degradation and top-down expectations to predict visibility ratings, and correlates with the amplitude of early sensory components (P1/N1m complex), suggesting a role in the selective amplification of predicted information. Our results thus indicate that low-frequency alpha oscillations can serve as a mechanism to carry and test sensory predictions about letters.

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Crossref · 10.1093/cercor/bhv146

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  • Oscillatory dynamics play a role in regulating cortical processing, especially the gamma (40 to 90 Hz) and alpha/beta (10 to 30 Hz) bands.

    “But there is mounting evidence that oscillatory dynamics play a role in regulating cortical processing and thus can also play a role, especially the gamma (40 to 90 Hz) and alpha/beta (10 to 30 Hz) bands (1, 18–25).”

    From Layer and rhythm specificity for predictive routing (2020) · cites this paper as [23]

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Authors
Mayer, A., Schwiedrzik, C. M., Wibral, M., Singer, W., & Melloni, L.
Affiliations
  • Max Planck Institute for Brain Research (DE)
  • Rockefeller University (US)
  • Goethe University Frankfurt (DE)
  • Frankfurt Institute for Advanced Studies (DE)
Corresponding author
Mayer, Anna
Venue
Cerebral Cortex
Published
2015-07-04
Volume
26
Issue
7
Pages
3146-3160
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W1938816422
Cited by
119
References
95
Citations by year
2026: 8 · 2025: 12 · 2024: 10 · 2023: 17 · 2022: 11 · 2021: 14 · 2020: 16 · 2019: 11 · 2018: 10 · 2017: 9 · 2016: 1
FWCI
4.00
Type
journal article
Language
en
Open access
closed
Locations
  • Cerebral Cortex (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
  • Max Planck Society
  • LOEWE grant “Neuronale Koordination Forschungsschwerpunkt Frankfurt” (NeFF)
  • Marie Curie International Outgoing Fellowship
  • Human Frontier Science Program Long-term Fellowship (LT001118/2012-L)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Multisensory perception and integration
Keywords
alpha oscillations, top-down prediction, sensory prediction, letter recognition, multisensory integration, stimulus degradation, visual perception, prior expectations, magnetoencephalography
MeSH terms
Adolescent, Adult, Alpha Rhythm, Blinking, Brain, Brain Mapping, Electrooculography, Female, Humans, Magnetic Resonance Imaging, Male, Neuropsychological Tests, Pattern Recognition, Visual, Photic Stimulation, Reading, Sensory Thresholds, Magnetoencephalography, Logistic Models, Young Adult, Anticipation, Psychological

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