The presence of complementary information across multiple sensory or motor modalities during learning, referred to as multimodal enrichment, can markedly benefit learning outcomes. Why is this? Cognitive, neural, and computational theories of enrichment attribute the benefits of enriched learning to either multimodal or unimodal mechanisms.
Figure and legend from Mathias, B., & von Kriegstein, K. (2023). Enriched learning: Behavior, brain, and computation. Trends in Cognitive Sciences, 27(1), 81–97. reproduced under Creative Commons license CC BY-NC-ND 4.0.