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  3. Cortical Alpha Changes During Visuospatial Attention: A Deep Learning-enriched Eeg Analysis.
  1. Home
  3. Cortical Alpha Changes During Visuospatial Attention: A Deep Learning-enriched Eeg Analysis.

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Cortical alpha changes during visuospatial attention: a deep learning-enriched EEG analysis.

Elisa Magosso1,2, Davide Borra1

  • 1Department of Electrical, Electronic, and Information Engineering "Guglielmo Marconi" (DEI), University of Bologna, Cesena Campus, Via dell'Università 50, 47521 Cesena (FC), Italy.

Cerebral Cortex (New York, N.Y. : 1991)
|March 26, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

This study reveals that the left parietal lobe is crucial for directing visuospatial attention, with a novel deep learning method refining our understanding of alpha-band brain activity modulation.

Keywords:
EEG source reconstructionalpha poweranticipatory visuospatial attentioninterpretable convolutional neural networkparietal cortex

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Brain Imaging

Background:

  • Covert visuospatial attention modulates alpha-band brain activity.
  • Specific cortical regions involved in this modulation are not fully understood.

Purpose of the Study:

  • To investigate the specific cortical regions involved in alpha-band modulation during cued visuospatial attention.
  • To present a novel combined approach using conventional analysis and deep learning for brain oscillation research.

Main Methods:

  • Whole-cortex analysis of alpha-band changes using source-level electroencephalographic (EEG) signals.
  • Integration of conventional alpha power analysis with a deep learning technique (interpretable convolutional neural network - CNN).
  • Discrimination of attention direction from EEG signals using the CNN to identify discriminative brain regions.

Main Results:

  • Conventional analysis indicated selective left parietal lobe involvement and broader right hemisphere involvement.
  • The CNN approach confirmed dominant left parietal lobe engagement and limited right parietal lobe involvement (supramarginal gyrus).
  • Findings suggest a tonic engagement of the right parietal lobe, limiting its dynamic alpha modulation range.

Conclusions:

  • The left parietal lobe plays a dominant role in visuospatial attention.
  • A combined EEG and deep learning approach effectively characterizes alpha-band attention-related changes.
  • This study enhances the understanding of neural mechanisms underlying attention and brain oscillations.