Related Experiment Video
Updated: Feb 5, 2026
08:45
Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example
Published on: October 24, 2012
15.2K
Low-Frequency Oscillatory Correlates of Auditory Predictive Processing in Cortical-Subcortical Networks: A MEG-Study
Marc Recasens1, Joachim Gross1,2, Peter J Uhlhaas3
1Institute of Neuroscience and Psychology, University of Glasgow, 58 Hillhead Street, Glasgow, G12 8QB, Scotland, United Kingdom.
Scientific Reports
|September 20, 2018
Summary
Neural oscillations, specifically theta/alpha-bands, are key to auditory prediction-error generation. Findings reveal distinct feedforward and feedback connectivity patterns in auditory processing networks.
Area of Science:
- Neuroscience
- Cognitive Science
- Auditory Perception
Background:
- Neural oscillations are implicated in predictive information processing.
- The specific oscillatory mechanisms for auditory mismatch detection and inter-regional information flow are not well understood.
Purpose of the Study:
- To investigate the role of theta/alpha-band oscillations in auditory mismatch detection.
- To examine directed connectivity patterns during auditory prediction-error responses.
Main Methods:
- Magnetoencephalography (MEG) data from 17 participants.
- Analysis of theta/alpha-band oscillations (4-8 Hz / 8-13 Hz).
- Minimum-norm source localization and Granger Causality analysis for directed connectivity.
Main Results:
- Mismatching auditory sequences increased theta power and phase-locking in auditory, hippocampal, and prefrontal cortices.
- Enhanced feedforward theta/alpha-band connectivity was observed in auditory-prefrontal networks during mismatching.
- Increased alpha-band feedback connectivity between hippocampus and auditory regions occurred during predictable sounds.
Conclusions:
- Theta-band oscillations are crucial for prediction-error generation in cortical-subcortical networks.
- Hippocampal theta/alpha-band oscillations contribute to auditory prediction-error processing.
- A spectral dissociation exists between feedforward and feedback inter-areal signaling in auditory networks.
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