What is the primary function of the central executive in Baddeley and Hitch's Working Memory Model?

• A. To store a temporary verbal code.
• B. To store visual information about form and color.
• C. To bind information from multiple memory stores into a unified episode.
• D. To supervise and coordinate cognitive processes, allocate attention, and manage the activities of the slave systems.

Answer: (D)

The central executive acts as the command center of working memory. It doesn’t store information itself; instead, its job is to supervise and coordinate cognitive processes, allocate attention, switch between tasks, and manage the activities of the other subsystems (like the verbal loop and the sketchpad) as well as integrate information with long-term memory through the episodic buffer. In practice, it handles tasks such as focusing on the right information, filtering distractors, and deciding which mental operations to perform next. The other components are responsible for storage: the verbal loop holds and rehearses spoken information, the visuospatial sketchpad stores visual and spatial details, and the episodic buffer binds information from different sources into a coherent episode. So, the description that best fits is the one about supervision, coordination, and attention management by the central executive.