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The episodic buffer is a crucial component of Baddeley's model of working memory that serves to integrate information across different domains, such as verbal and visual information. This integration allows for a cohesive representation of experiences and enables the storage of information in a multidimensional context. The episodic buffer acts as a bridge between the phonological loop, which handles auditory information, and the visuospatial sketchpad, which manages visual and spatial information. By facilitating the combination of inputs from these various domains, the episodic buffer plays a vital role in forming more complex memories and representations.

In contrast, the phonological loop specifically focuses on the processing and temporary storage of verbal and auditory information, while the visuospatial sketchpad deals exclusively with visual and spatial elements. The central executive, another component of working memory, is primarily responsible for overseeing and coordinating the activities of these subsystems but does not directly integrate information itself. Thus, the episodic buffer's function in synthesizing diverse types of data is what makes it the correct answer in this context.