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-====== Overview of Human Memory Models ======
-===== Early models of memory =====
-Some of the first noted research on human memory was conducted in 1890 by [[http://www.hcl.harvard.edu/libraries/houghton/exhibits/james/introduction.cfm|William James]]. Based on his works, James assumed memory consists out of two systems:
-  * primary memory, which lasts for a few seconds and holds in our consciousness the perception of events in our environment, and
-  * second memory, which has unlimited duration and can be brought to consciousness if wanted.
-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. 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.
-===== Bibliography =====
-[[http://penta.ufrgs.br/edu/telelab/1/famous.htm|Famous People and Their Contributions to the Study of Memory]] Retrieved March 16, 2011.

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