What are the key components of Baddeley and Hitch's working memory model?

• A. Phonological loop, visuo-spatial sketchpad, and central executive.
• B. Phonological loop, semantic store, and episodic buffer.
• C. Central processor, long-term store, and sensory register.
• D. Visual cache, inner scribe, and episodic buffer.

Answer: (C)

The model is built around three main components: a central executive that acts as the control system, directing attention and coordinating processing; a phonological loop that handles verbal and auditory information through a phonological store and subvocal rehearsal; and a visuo-spatial sketchpad that manages visual and spatial information. The episodic buffer was added later to link these short-term representations with long-term memory, but the core structure originally centers on the central executive, phonological loop, and visuo-spatial sketchpad. The other options don’t fit because they either include elements from broader memory theories (like a long-term store or sensory register) or treat subcomponents of the visuospatial system as separate core components.