Scientists at Yale School of Medicine have identified a molecular distinction in the brains of autistic individuals that sets them apart from neurotypical people—a finding that could reshape how we understand autism at the cellular level. This discovery marks an important step forward in autism research, moving beyond behavioral observations to examine the biological underpinnings of how autistic brains develop and function differently. While autism has long been recognized as a neurodevelopmental condition with a strong genetic component, pinpointing the