A per-participant PCA/GMM reanalysis of the Horikawa emotion fMRI data finds 11 to 14 stable clusters per person and near-zero normalized mutual information with group-averaged emotion ratings, not the original category mappings.
The spread of the eigenvalues revealed how much of the variance in the original covariance matrix was explained by each of the eigenvectors/principal components
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
fields
cs.LG 1years
2025 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Exploring Theory-Laden Observations in the Brain Basis of Emotional Experience
A per-participant PCA/GMM reanalysis of the Horikawa emotion fMRI data finds 11 to 14 stable clusters per person and near-zero normalized mutual information with group-averaged emotion ratings, not the original category mappings.