Definition
A very brief sensory memory that holds visual information for a fraction of a second after the eye has seen it, allowing the brain time to decide what is worth passing into short-term memory.
Plain English
It is the split-second visual snapshot the brain keeps right after you look at something, before that image fades or moves into conscious memory.
Context Anchor
Seen in aviation instructor discussions of short-term memory, attention, cockpit scanning, and how students take in visual information.
Derivation
From the Greek 'eikon,' meaning image or likeness. The same root gives us 'icon.' It is called iconic memory because it holds a visual image, not a sound or a feeling.
Why Pilots Care
Pilots need to know that visual details from a quick instrument scan or runway view disappear fast unless moved into short-term memory through attention.
Analogy
It is like the brief after-image of a camera flash: for a tiny moment the picture is still there, but it will not last unless your attention catches what matters.
Intuition Check
Iconic does not mean famous or symbolic here. It means image-based: the brief memory trace of something just seen.
Example Sentence 1
When the instructor flashed the traffic pattern diagram on the screen, the students relied on iconic memory to hold the picture long enough to start describing it.
Example Sentence 2
During a night flight the brief flash of a beacon stayed in iconic memory long enough for the pilot to note its color and position.