Claude E. Shannon (1948)
Bell System Technical Journal, 27(3), 379-423.
DOI: https://doi.org/10.1002/j.1538-7305.1948.tb01338.x
Abstract. Shannon's foundational information theory. The Index of Difficulty in Fitts's Law — ID = log₂(D/W + 1) — is a direct adaptation of Shannon's channel-capacity formula. Cited by every information- theoretic treatment of motor-control performance since.
Tags: information-theory foundational fitts