What is sensory memory?

Sensory memory refers specifically to the initial stage of memory processing where sensory information from the environment is briefly captured and retained. This storage happens almost instantaneously and lasts for a very short duration, typically just a few seconds. During this brief period, sensory memory allows individuals to hold onto information from their senses—like sights, sounds, and smells—so that they can briefly reflect on what they have just experienced.

This function is crucial as it enables the brain to organize and decide what sensory information is important enough to move on to short-term memory for further processing. Other forms of memory, such as long-term storage, filtered information, and previously learned activation, involve different processes and durations of memory retention that do not accurately describe the purpose or function of sensory memory.