Extinction of conditioned inhibition: Effects of different outcome continua |
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| Authors: | Anja Lotz Harald Lachnit |
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| Institution: | 1.Department of Psychology,Philipps-Universit?t Marburg,Marburg,Germany |
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| Abstract: | For some decades, failures to find extinction of inhibition through unpaired presentations of the inhibitor were taken as
evidence against conceptualizing inhibition as the symmetrical counterpart of excitation. Recently, however, our group has
demonstrated successful extinction of inhibition in human causal learning. In two experiments, we replicated and strengthened
this finding by using an outcome continuum that could take on negative, neutral, or positive values. In contrast, the use
of a dichotomous outcome continuum (either neutral or positive) resulted in the well-known nonoccurrence of extinction. Extinction
of inhibition through the pairing of inhibitors with neutral outcomes was assessed by (1) comparing the (presumably) extinguished
inhibitor with a second inhibitor that had not been presented with a neutral outcome in the extinction stage, and (2) demonstrating
the course of extinction in participants’ predictions. |
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| Keywords: | |
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