ArticleNeuroscience bulletin2026
Frequency-Specific Neural Dynamics and Decoding of Hierarchical Auditory Sequences Revealed by Magnetoencephalography.
Article in Neuroscience bulletin, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Hierarchical auditory processing is crucial for human language perception. However, the spatiotemporal characteristics of frequency-specific neural dynamics and the representation of abstract auditory properties, such as sequential structures and probability attributes, during auditory processing remain insufficiently understood. We used magnetoencephalography and a hierarchical auditory sequence paradigm to investigate these characteristics. Our findings delineated the bidirectional connections underlying auditory processing across multiple timescales, as reflected by frequency-specific directed information flow, and revealed temporal alternations in the direction of low-frequency oscillatory activity. Using multivariate decoders applied to low-frequency signals, we decoded tone- and sequence-level regularities along cortical pathways in temporal order, demonstrating the progressive representation of hierarchical auditory information. Furthermore, frequency-specific decoding of neural activity in temporal and memory-associated regions disentangled the sequential and probabilistic properties integrated during abstract auditory processing. Collectively, these results advance our understanding of the mechanisms underlying information sharing and the integration of abstract auditory information during perception.
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