How does working memory interact with tasks like memorizing a phone number while performing a spatial task?

• A. The Phonological Loop handles the spatial task, and VSSP stores the phone number
• B. The Phonological Loop handles the phone number; the Visuospatial Sketchpad handles the spatial task; the Central Executive coordinates; Episodic Buffer may integrate for episodic memory
• C. The Central Executive handles both; Phonological Loop not involved
• D. The Episodic Buffer stores both and coordinates all

Answer: (B)

Think of working memory as a set of specialized tools plus an overall manager. Memorizing a phone number uses the phonological loop, a verbal-auditory system that has a phonological store for brief speech-based information and an articulatory rehearsal process that silently repeats it to keep it active. The spatial task, on the other hand, relies on the visuospatial sketchpad, which handles visual images and spatial relationships.

The central executive acts as the manager, allocating attention, monitoring interference, and coordinating how these streams are used together. When you juggle both tasks, the central executive helps keep the phone-number information active while you perform the spatial task, with each stream operating in its own store so they can function in parallel.

The episodic buffer can bind information from different sources (verbal, visual-spatial, and long-term memory) into a single, coherent episode, which helps you remember the number within a spatial or contextual context. But it doesn’t replace the primary storage roles of the phonological loop or the visuospatial sketchpad.

So, the phone number is stored in the phonological loop, the spatial task in the visuospatial sketchpad, the central executive coordinates, and the episodic buffer can integrate across these streams.