What is the term for the brief sensory memory of a visual stimulus that persists for approximately one-half second?

Explanation

An iconic memory is a type of sensory memory that holds a visual representation of a stimulus for a very short duration, typically less than a second. This allows the brain to process visual information even after the physical stimulus has been removed from the field of vision. It is distinct from echoic memory, which pertains to auditory stimuli, and is a foundational component of the sensory register in memory models.