in 1974. Through their research, they contributed more to help understand how the mind may process information. They added three elements that explain further cognitive processes. These elements are the central executive, phonological loop, and the visuo-spatial working memory. Later Alan Baddeley added a fourth element to the working memory model called the episodic buffer. Together these ideas support the information processing theory and possibly explain how the mind processes information.

Central executive

Phonological loop

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