A two-state model of simple reaction time
A two-state model of simple reaction time
A two-state model of simple reaction time
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stimulus as equal to or as half <strong>of</strong> the standard stimulus S.<br />
For this pair <strong>of</strong> SL and 8 1 / 2 (::::t) ,<br />
(3-4)<br />
0-5)<br />
Let P (t) be the proportion retained after t <strong>time</strong> passed<br />
r<br />
from the end <strong>of</strong> S. For a suitable pair <strong>of</strong> standard stimuli, S1<br />
and. S2' SL::: 8 1 / 2 •<br />
(8 L - S6)n<br />
(8 1 -S 0 )n<br />
- Pr(t)<br />
2(Sl/2-80)n<br />
(S2-S0)n<br />
where So and So are the absolute thresholds for the standard and<br />
variable stimuli.<br />
Substituting for 8 1 and S2 the values obtained from eqs.<br />
0-4) and(3-5),<br />
== Pr(t)<br />
b n (SL-S6)n<br />
(SCa-bSO)n<br />
_ 2b1 (S1/2-So)n<br />
(Sl/2-a1-b1SO)n<br />
Substituting t for SL and 8 1 / 2 ,<br />
/ n t Sl n<br />
11-[ t-So ] -- 2. b rt [ -" J<br />
b t-a-b$o - I t-a,-p,5o
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