Historical Papers

The magical number seven, plus or minus two: Some limits on our capacity for processing information

DOI: https://doi.org/10.1037/h0043158

Description: A variety of researches are examined from the standpoint of information theory. It is shown that the unaided observer is severely limited in terms of the amount of information he can receive, process, and remember. However, it is shown that by the use of various techniques, e.g., use of several stimulus dimensions, recoding, and various mnemonic devices, this informational bottleneck can be broken.

What the frog's eye tells the frog's brain

J. Y. Lettvin , H. R. Maturana , W. S. McCulloch & W. H. Pitts (Proceedings of the IRE, 1959)

DOI: 10.1109/JRPROC.1959.287207


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