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memory_models:a_brief_history_of_human_memory_systems [2011/04/08 10:16] jpetrovic [Early models and measures of memory] |
memory_models:a_brief_history_of_human_memory_systems [2011/04/08 10:53] jpetrovic [One or two memory systems?] |
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The thesis of two separate memory systems: the **long-term memory** and the **short-term memory** is today considered to be true. Some of the evidence for this thesis are: | The thesis of two separate memory systems: the **long-term memory** and the **short-term memory** is today considered to be true. Some of the evidence for this thesis are: | ||
- | * **differences in characteristics** like retention speed (high for STM and longer for LTM), capacity (small for STM and large or unlimited for LTM), time to acquire information (short for STM and longer for LTM) | + | * **differences in capacity** (small for STM and large or unlimited for LTM) |
+ | * **difference in duration limits** (items in STM decay as a function of time, which is not a characteristic of LTM(([[http://web.missouri.edu/~cowann/documents/Cowan2008progressinbrainresearchSTMLTM.pdf|Cowan, N. What are the differences between long-term, short-term, and working memory? Progress in brain research 169: 323-338. 2008.]]))) | ||
+ | * **differences in retention speed** (high for STM and longer for LTM), | ||
+ | * time to acquire information (short for STM and longer for LTM) | ||
* **information encoding** (semantic for LTM and acoustic or visual for STM) | * **information encoding** (semantic for LTM and acoustic or visual for STM) | ||
* patients who suffered **physical injuries** demonstrated how LTM or STM can be damaged without influencing the other | * patients who suffered **physical injuries** demonstrated how LTM or STM can be damaged without influencing the other |