A two-state model of simple reaction time

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In chapter I, we saw that, for choice reaction time, the
two-state (prepared and unprepared states) model by Falmagne
(1965) is simple with respect to its structure and successful
in describing data. For simple reaction time, we found one
model, which incorporates a process of expectation/anticipation.
But, this model does not predict the sequential effects, the
effects of the preceding FPs.
In chapter II, the author reported experiments, which
confirmed importance of expectation in simple reaction task and
the effects of the preceding FP. In this chapter, the author
proposed a model, which has the following three characteristics;
1) The model is based on the process of expectation (cf. the
results of experiments I, II, III and IV).
2) The sequential effects are incorporated (cfo the results of
experiments III and IV).
3) The model is described in terms of discrete states, i.e.,
the prepared and not-prepared states o As to the term preparedness,
there are other terms, which have close relationships to it, i.e.,
expectation, anticipation and refractoriness. Refractoriness