Abstract
Free association is a task that requires a subject to express the first word to come to their mind when presented with a certain cue. It is a task which can be used to expose the basic mechanisms by which humans connect memories. In this work, we have made use of a publicly available database of free associations to model the exploration of the averaged network of associations using a statistical and the adaptive control of thought–rational (ACT-R) model. We performed, in addition, an online experiment asking participants to navigate the averaged network using their individual preferences for word associations. We have investigated the statistics of word repetitions in this guided association task. We find that the considered models mimic some of the statistical properties, viz the probability of word repetitions, the distance between repetitions and the distribution of association chain lengths, of the experiment, with the ACT-R model showing a particularly good fit to the experimental data for the more intricate properties as, for instance, the ratio of repetitions per length of association chains.
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Guillermo A. Ludueña and Mehran Djalali Behzad have contributed equally to this work.
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Ludueña, G.A., Behzad, M.D. & Gros, C. Exploration in free word association networks: models and experiment. Cogn Process 15, 195–200 (2014). https://doi.org/10.1007/s10339-013-0590-0
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DOI: https://doi.org/10.1007/s10339-013-0590-0