Alternative Theory
Dual-coding theory is not accepted by everyone. John Anderson and Gordon Bower proposed an alternative method - the propositional theory - of how knowledge is mentally represented. The propositional theory claims that mental representations are stored as propositions rather than as images. Here, proposition is defined as the meaning that underlies the relationship between concepts (Sternberg, 2003). This theory states that images occur as a result of other cognitive processes because knowledge is not represented in the form of images, words, or symbols.
The common coding theory has also been proposed as an alternative to dual coding theory. The common coding theory looks at how things we see and hear are connected to our motor actions. It claims that there is a common code that is shared between perceiving something and the respective motor action.
Read more about this topic: Dual-coding Theory
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