memory_models:a_brief_history_of_human_memory_systems
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memory_models:a_brief_history_of_human_memory_systems [2011/08/29 14:45] jpetrovic [Bibliography] |
memory_models:a_brief_history_of_human_memory_systems [2013/10/14 09:51] jpetrovic [Early models and measures of memory] |
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| * **primary memory**, which lasts for a **few seconds** and holds information **in our consciousness**, and | * **primary memory**, which lasts for a **few seconds** and holds information **in our consciousness**, and | ||
| - | *** second memory**, which has **unlimited duration** and can be **brought to consciousness** if desired. | + | *** secondary memory**, which has **unlimited duration** and can be **brought to consciousness** if desired. |
| A measure for the **capacity of short-term** (primary) memory was first introduced even a bit earlier, in 1887, by **Joseph Jacobs**, who tested the span of digits his students were able to remember.((Jacobs, J. Experiments in 'prehension'. Mind, 12, 75-79, 1887. Cited by [[http://books.google.com/books?id=fMgm-2NXAXYC|Baddeley, Alan D. Human memory: theory and practice. Psychology Press, 1997.]])) Under the criterion that at least 50% of the digits need to be remembered correctly, subjects he tested mostly remembered **about 7 digits**. What he also noticed is that this result can be improved by grouping the digits (for example in groups of three), or reading aloud. | A measure for the **capacity of short-term** (primary) memory was first introduced even a bit earlier, in 1887, by **Joseph Jacobs**, who tested the span of digits his students were able to remember.((Jacobs, J. Experiments in 'prehension'. Mind, 12, 75-79, 1887. Cited by [[http://books.google.com/books?id=fMgm-2NXAXYC|Baddeley, Alan D. Human memory: theory and practice. Psychology Press, 1997.]])) Under the criterion that at least 50% of the digits need to be remembered correctly, subjects he tested mostly remembered **about 7 digits**. What he also noticed is that this result can be improved by grouping the digits (for example in groups of three), or reading aloud. | ||
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