Petrophysics: Difference between revisions

Revision as of 02:47, 2 March 2014

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-{{Unreferenced|auto=yes|date=December 2009}}
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-'''Reactive inhibition''' is a phrase coined by [[Clark L. Hull]] (1951) in his postulate X.A.:<blockquote>Whenever a reaction ''R'' is evoked from an organism there is left an increment of primary negative drive ''I''<sub>''R''</sub> which inhibits to a degree according to its magnitude the reaction potential<sub> ''S''</sub>''E''<sub>''R''</sub> to that response (Hull, 1951, p. 74).</blockquote>
-According to Hull's postulate X.B. inhibition ''I'' dissipates exponentially with time ''t'':.:<blockquote>With the passage of time since its formation ''I''<sub>''R''</sub> spontaneously dissipates approximately as a simple decay function of the time ''t'' elapsed, i.e.,
-:<math>I'_R = I_R x 10^{-at}</math> (Hull, 1951, p. 74).</blockquote>Hull's decay formula is somewhat awkward and might give rise to confusion. For example, ''I'''<sub>''R''</sub> does not refer to the derivative of ''I''<sub>''R''</sub>. A more convenient way of writing the formula would be as follows:
-:<math>I(t) = I(0) e^{-bt}</math>
-with <math>b = a \ln (10)</math>. <math>I(0)</math> is the inhibition at the beginning the time interval [0,''t'']. Note, that if one takes the natural logarithm of both sides one obtains:
-:<math>Y(t) = Y(0) - bt</math>
-where <math>Y(t) = \ln  I(t)</math> and <math>Y(0) = \ln  I(0)</math>. The last formula is used in [[Inhibition Theory]].
-==References==
-Hull, C.L.: Essentials of behavior. Westport (Connecticut): Greenwood Press, 1951.
-[[Category:Perception]]
-{{DEFAULTSORT:Reactive Inhibition}}
-{{cognitive-psych-stub}}

Petrophysics: Difference between revisions

Revision as of 02:47, 2 March 2014

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