https://www.mauriziolacava.com/en/faq/what-is-the-concept-of-dual-coding-and-how-it-improves-retention/
What is "dual coding" and how does it improve retention?
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https://researchconnect.buffalo.edu/en/publications/dual-coding-hypotheses-for-neural-information-representation/
Dual coding hypotheses for neural information representation - SUNY University at Buffalo
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