TY - RPRT TI - When Color Adds Nothing: A Causal Audit of Channel Triplication in Alzheimer's MRI Classification AU - Singhvi, S. AU - Singhvi, R. PY - 2026 DO - 10.64898/2026.07.07.737073 UR - https://www.biorxiv.org/content/10.64898/2026.07.07.737073v1 ID - 10.64898/2026.07.07.737073 ER -