The short-term storage as a buffer memory between long-term storage and the motor system: A simultaneous-processing model |
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Authors: | Rolf Ulrich Klaus Dietz |
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Institution: | Universität Tübingen, Federal Republic of Germany |
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Abstract: | It is assumed that in a free-recall task the short-term store serves as a memory buffer between the long-term store and a final motor stage of word production. Because of this the retrieval process in long-term store is not hindered by the final motor stage of word production since continued output from the long-term store queues in the buffer for motoric processing. Otherwise a time consuming communication between the two processes would be necessary. A stochastic model of this conceptualization is provided to predict the temporal course of free recall as well as a paradigm in which the contribution of the short-term store in free recall can be studied. The experimental results from this paradigm were used to test the model and to estimate short-term storage capacity on the basis of the time course of free recall. The model predictions were in good agreement with the data and the capacity estimate coincides well with estimates found by totally different methods reported in the literature. |
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Keywords: | Requests for reprints should be sent to Rolf Ulrich Universität Tübingen Psychologisches Institut Friedrichstrasse 21 D-7400 Tübingen Federal Republic of Germany |
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