ABSTRACT
Even the simple task of comparing a pair of presented time intervals turns out not to be terribly easy, which suggests that the perception and evaluation of duration may be more complex than would appear at first sight. Investigators who have studied time have been aware of this intrinsic difficulty and, beginning with Ernst Mach, the debate about the nature and properties of what is sometimes called the time sense has gone. In 1975, however, H. Eisler proposed a model based on the assumption that two successive time intervals are compared without recourse to memory. The mechanisms or processes can be considered as ever so many variations on a single theme. To doubt the appropriateness of the procedure used for estimating “missing data” in the design. A Monte Carlo experiment shows that the degree of additivity may be seriously overestimated by this procedure.
