The purpose of sensory memory is to retain information long enough for it to be recognized.
At a Glance
Sensory memory is averyshort-term storage for information from the senses.
It persists briefly and allows for processing even after the stimulus has ended.
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While sensory memory may be brief, it is crucial to attention and memory.
Types of Sensory Memory
Experts believe that different senses have different types of sensory memory.
The different types of sensory memory have also been shown to have slightly different durations.
Iconic Memory
Also known as visual sensory memory,iconic memoryinvolves a very brief image.
This throw in of sensory memory typically lasts for aboutone-quarter to one-half of a second.
This bang out of sensory memory can last for up tothree to four seconds.
Haptic Memory
Also known as tactile memory, haptic involves the very brief memory of a touch.
This key in of sensory memory lasts for approximatelytwo seconds.
How Does Sensory Memory Work?
So just how brief is a sensory memory?
Experts suggest that these memories last forthree seconds or less.
Haptic memory examples might include the brief memory of something brushing up against your skin.
In each instance, the very brief lingering memory you experience allows you to recognize and process the experience.
Then, the screen went blank.
Inspired by this, Sperling then performed a slightly varied version of the same experiment.
The recall was nearly impossible when the tone was sounded after sensory memory faded.
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