(Presented with the Marr and Zeiler files)

Zeiler, M. D. (1999). Time without clocks. Journal of the Experimental Analysis of Behavior, 71, 288-291.

Staddon and Higa show that the ability to time events derives from principles of memory rather than from an internal device for measuring the duration of events. This insightful timing theory is parsimonious, fits the data, has potential widespread generality, and is evolutionarily plausible.

Key words: timing theory, temporal control, memory, internal clock