1.Lingusitics. Theory that an input represented in memory as a word and a picture is more readily recalled than a word we can't put a image with. 2. People who are bilingual use 2 different codes. See coordinate bilingual. 3. Theory explaining imagery and performance suggesting there are 2 ways to gain information about skills.
DUAL CODING THEORY: "The dual coding theory looks at how we see things in our memory as a word and an image related to that word."