Original ResearchPublished 11 December 2025Marmoset superior colliculus: neuronal expression of somatostatin but not vasoactive intestinal peptide or neuropeptide YMelissa H. Y. Chong · Emmanuel K. L. Cho · Marcello G. P. Rosa · Nafiseh AtapourFrontiers in Neuroanatomydoi 10.3389/fnana.2025.1731419