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- Reactive inhibition is a phrase coined by Clark L. Hull in his 1943 book titled Principles of Behavior. He defined it as: Whenever any reaction is evoked in an organism there is left a condition or state which acts as a primary negative motivation in that it has an innate capacity to produce a cessation of the activity which produced the state. Reactive inhibition is typically studied in the context of drive reduction. Hull likens it to fatigue through which humans become tired over time and thus less accurate and precise within a given task. There is significant debate whether the process of reactive inhibition is due to fatigue or some other process. Nevertheless, it is a factor researchers need to consider in analyses of sustained performance due to its possible role in the results and analysis of research. Hull goes on to further explain the decay of performance through the use of a decay formula which can estimate the rate of performance deterioration. Hull explains: I dissipates exponentially with time t: With the passage of time since its formation IR spontaneously dissipates approximately as a simple decay function of the time t elapsed, i.e., (Hull, 1951, p. 74). Hull's decay formula is somewhat awkward and might give rise to confusion. For example, I'R does not refer to the derivative of IR. A more convenient way of writing the formula would be as follows: with . is the inhibition at the beginning the time interval [0,t]. Note that if one takes the natural logarithm of both sides one obtains: where and . The last formula is used in inhibition theory. Reactive inhibition is distinct from proactive inhibition. Reactive inhibition occurs after an initial response has been activated and set to be carried out. In contrast, proactive inhibition determines whether or not the response process is activated in the future and occurs before initial activation. Reactive inhibition is considered to be a bottom-up processing process and associated with “lower level mechanisms of inhibition”, whereas proactive inhibition is considered more top-down processing and dealing with “higher level mechanisms”. (en)
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- Reactive inhibition is a phrase coined by Clark L. Hull in his 1943 book titled Principles of Behavior. He defined it as: Whenever any reaction is evoked in an organism there is left a condition or state which acts as a primary negative motivation in that it has an innate capacity to produce a cessation of the activity which produced the state. Hull goes on to further explain the decay of performance through the use of a decay formula which can estimate the rate of performance deterioration. Hull explains: I dissipates exponentially with time t: (Hull, 1951, p. 74). (en)
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