Answer:
George Sperling
Step-by-step explanation:
The psychologist George Sperling experimented the existence and duration of sensory memory in the year 1960.
Sensory memory is a very brief memory that lasts for about three seconds or less and ceases after the stimulant had been removed. It is the first stage of memory where humans store an image for a brief moment, before it is discarded (forgotten).
Sensory memory retains a very short-lived impression of an image, the important details of this impression are then being transferred to the short-term memory.