What Is Sensory Memory?

Transient memory is also known as "sensory memory", a type of memory system that stimulates transient memories caused by sensory organs. Usually refers to the time of about 1 second, that is, the time when the attentional information is just noticed (some people call this memory sensory memory), the instantaneous memory time is extremely short, and a large amount of noticed information is easy to disappear and can be remembered. Only live things into short-term memory. ^[1]

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The holding time of sensory information is about 1 second and it is coded in sensory form according to the physical characteristics of the stimulus, and the information capacity is large. This memory retains the original form of stimulation, as if it were registered in the original form. If it receives attention, it will be identified and transferred to the next short-term memory for further processing, otherwise it will disappear soon. In a classic experiment performed by American psychologist Sperling in 1960 using a partial reporting method, the existence of transient memory was demonstrated. Translate "instant memory". A thought put forward by psychologist Broadbent. He proposed that information pass through several memory systems. The information received from the environment is stored in the s system; after filtering, some of them enter the P system. Due to the limited reserves of the P system, the rest are lost. The s and P systems together form an immediate, preliminary memory, or a short-term memory. The information is kept from P system to s system and back to P system during the restatement. Without restatement, the message begins to fade. The information in the s system and the P system can also be transferred to the next-level system, or called the long-term memory system, and its reserves are unlimited. ^[3]

In medicine, "

What is the use of instant memory? In other words, why do we need instant memory? You may be sitting on a chair now, your eyes scanning every line unconsciously. You know what I'm talking to you, and at the same time you can vaguely feel the movement around you. You can hear the sound of flipping a book, you can feel the comfort of the chair, and you can estimate that the temperature today is almost the same as yesterday. Maybe you smell the fragrance left after brushing your teeth in the morning ... All these feelings when you read the book They all exist, but you pay too much attention to the book and hardly realize them. But if someone suddenly pushes the door close, you may unconsciously raise your head, or you have heard from the footsteps who it is and why it came. In short, you have stopped the book in your hand. This shows that you are indeed aware of the surrounding changes at any time. The effect of instant memory is that it temporarily holds all the organ stimuli you receive for your choice. We need it, because the process of judging which of the surrounding environment's stimuli is important and which are of secondary importance, and choosing meaningful stimuli for us takes time, and this time should not be too long, otherwise we may lose More important information.