Working memory is the system that temporarily holds and manipulates information needed for complex cognitive tasks. It is more than a passive short-term store. While you calculate a tip, follow a conversation, or decide which route to take, working memory keeps the relevant details active and available for processing.

Alan Baddeley’s influential model divides the system into a central executive that directs attention, a phonological loop for verbal material, a visuospatial sketchpad for visual and spatial information, and an episodic buffer that integrates information across domains and with long-term memory. Capacity remains limited; dual-task interference occurs when two activities compete for the same component.

Working-memory capacity predicts performance on a wide range of reasoning and comprehension tasks. Training studies have produced mixed results; gains often remain specific to the trained task rather than transferring broadly. Still, the construct is central to contemporary cognitive psychology and neuroscience.

• Active maintenance and manipulation of information
• Limited capacity
• Multiple specialized components
• Critical for reasoning and comprehension

Everyday life continuously taxes working memory, from following a recipe to holding a phone number while dialing.