What does the episodic buffer do in the working memory model?

• A. It acts as a bridge linking WM components with long-term memory to form integrated episodes.
• B. It stores phonological information for rehearsal.
• C. It contains sensory buffers for perception.
• D. It directly stores long-term memories.

Answer: (A)

The episodic buffer acts as a temporary, limited-capacity store that binds together information from the different parts of working memory and links this integrated representation to long-term memory to form a coherent, time-ordered episode. It functions like a multi-modal workspace where auditory input from the phonological loop, visual-spatial input from the visuospatial sketchpad, and other information can be combined into a single, unified memory trace. This binding is what lets you recall events as a cohesive episode rather than as separate bits of data. The buffer also provides a bridge to long-term memory, enabling encoding of integrated episodes and retrieval of related information when needed.

It’s not primarily there to store phonological information (that belongs to the phonological loop), nor is it a simple sensory store (that’s sensory memory) or a place that directly holds long-term memories.