Final answer:
Working memory is not listed as a component in the Atkinson-Shiffrin model; this model includes sensory memory, short-term memory, and long-term memory.
Step-by-step explanation:
The component from the Atkinson-Shiffrin memory model that is not listed is working memory. The Atkinson-Shiffrin model, formulated by Richard Atkinson and Richard Shiffrin in 1968, includes three distinct stages: sensory memory, short-term memory, and long-term memory. While working memory is a concept related to short-term memory, it is more accurately associated with the model proposed by Baddeley and Hitch, which includes the visuospatial sketchpad, episodic buffer, and phonological loop, managed by a central executive.