![]() ![]() Most of the information in or sensory memory is not encoded, however some of it is encoded in the next stage of our memory: short term memory. Other experiments demonstrated the existence of echoic memory, an equally split second memory for sounds. If not asked what the letters in the grid were immediately after the flash, the participants would have no recollection of ANY of the letters. This type of sensory memory is called iconic memory, a split second perfect photograph of a scene. This experiment demonstrated that the entire grid must be held in the sensory memory for a split second. The participants could recall any of the three rows perfectly. The participants in the study were directed to recall either the top, middle or bottom row immediately after the grid was flashed to them (Sterling used a low, medium or high tone to indicate which row they should recall). He flashed a grid of nine letters, three rows and three columns, to participants for 1/20 of a second. Researcher George Sterling demonstrated that sensory memory exists, and that it only lasts a split second. In fact, there is just a VERY SMALL amount of information picked up by our senses that we pay attention to and goes on to the next stage of memory (short term memory). Most of what we sense we forget almost immediately, just like most of the water goes to the top of the falls and falls righ-t down. The top of the falls is our brain/awareness and the water is all the stuff we are constantly sensing. I like to think of sensory memory like the Niagara Falls. Sensory memory (the hardest of the three types of memory to grasp) is defined as a slit second holding tank for all sensory information. This first stage of memory is called sensory memory. In order for anything to enter out memory, it must first be picked up by our senses (taste, touch, sight, hearing and smell). But this model creates a concept that simplifies the process. In reality, memory occurs many different ways, all over the brain. If you keep these terms in mind (encoding, storage and retrieval) the concept of memory becomes a snap.īefore looking at the model in any detail, I want you to understand that this model is just an idea. If you drink alot of alcohol and can’t remember where you live, you have retrieval failure. This would be the same as finding and opening the document on your computer. Finally, there is retrieval, or getting the information you have stored back out of your head so you can use it. If you bang your head one night and forget the name of your dog, you have storage failure. The next step, storage, is holding the information inside your head just like pressing CTRL S on your computer and saving your project. If someone starts fling rubber bands at your head that while you are trying to study, that would effect the info you are trying to get in your head called encoding failure. Think of encoding like typing a project on your computer. Encoding is the process of putting information inside of your head. There are several models that exist to explain memory- we will go over the most important two the three-box/information processing model and the levels of processing model.īut before I go through the models an easy way to look at memory is through a three step process encoding, storage and retrieval. Memory is defined as learning that has persisted over time. Why do I remember my 14th birthday party or the girl I had a crush on in the fifth grade, but I do not remember that one girl who sits in the back row in my first period class? ![]() ![]() What causes us to remember what we remember and to forget what we forget? When it comes to memory we will be focusing on one central question: ![]()
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