Original ResearchPublished 23 September 2026Structurally restricted message-passing within shallow architectures for explainable network-level brain decoding on small cohortsJosé Diogo Marques dos Santos · Maria Beatriz Ramos · Luís Paulo Reis · José Paulo Marques dos Santos · Bruno DireitoFrontiers in Behavioral Neurosciencedoi 10.3389/fnbeh.2026.1833995