The sensory register is the first memory system that information passes through. The sensory register perceives and retains information that is received via the five senses for a very short amount of time, i.e. a few seconds. Though we have sensory registers for all five senses, only two have been well-studied. Research has primarily focused on iconic memory, (visual memory) and echoic memory, (auditory memory). It’s estimated that we can hold information in iconic memory for less than one second, while we can keep information in echoic memory for up to five seconds. We can think of sensory registry as a holding bin that keeps information until we decide which items we want to pay attention to. Most information that is not attended to is forgotten. Paying attention allows us to move information from sensory register to short-term memory.