procedure
The researchers performed analysis-specific fMRI data preprocessing using FSL 6.0.2, SPM 12, and custom Python scripts (NiBabel 3.2.2 and SciPy 1.8.0). For univariate analyses, functional data were spatially smoothed with a Gaussian kernel (5 mm full-width at half-maximum), grand mean scaled, and temporal high-pass filtered (128 s), while multivariate analyses were performed without spatial smoothing.

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