Which memory system is characterized by fleeting sensory information storage?

The correct answer is sensory memory, as this memory system is specifically designed to hold fleeting sensory information for a very brief period. Sensory memory allows individuals to retain impressions of sensory stimuli after the original stimulus has ceased. It is the first stage in the memory process and captures raw data from the environment, such as sights, sounds, and smells, for a fraction of a second to a few seconds. This rapid processing enables us to initially perceive an event or experience.

In contrast, short-term memory stores information for a longer duration, typically from about 15 to 30 seconds, and is involved in the active manipulation of information. Long-term memory refers to more permanent storage of information that can last days, months, or even a lifetime, allowing for the retention of knowledge and experiences. Implicit memory, meanwhile, pertains to the unconscious retention of information, such as skills and learned behaviors, rather than immediate sensory impressions.