Supervised learning for neural manifold using spatiotemporal brain activity
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Updated: Mar 30, 2026
Modeling the Functional Network for Spatial Navigation in the Human Brain
Published on: October 13, 2023
Po-Chih Kuo1, Yong-Sheng Chen1,2, Li-Fen Chen3,4
1Department of Computer Science, National Chiao Tung University, 1001 University Road, Hsinchu, Taiwan.
Objective:
Determining the means by which perceived stimuli are compactly represented in the human brain is a difficult task. This study aimed to develop techniques for the construction of the neural manifold as a representation of visual stimuli.
Approach:
We propose a supervised locally linear embedding method to construct the embedded manifold from brain activity, taking into account similarities between corresponding stimuli. In our experiments, photographic portraits were used as visual stimuli and brain activity was calculated from magnetoencephalographic data using a source localization method.
Main Results:
The results of 10 × 10-fold cross-validation revealed a strong correlation between manifolds of brain activity and the orientation of faces in the presented images, suggesting that high-level information related to image content can be revealed in the brain responses represented in the manifold.
Significance:
Our experiments demonstrate that the proposed method is applicable to investigation into the inherent patterns of brain activity.
