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In contrast, we show how this limit might emerge as the combinatorics of the space of enumeration problems interacts with the human cognitive architecture in the context of an enumeration task. Subitizing\u2010like behavior was generated in two different models of enumeration, one based on the ACT\u2010R cognitive architecture and the other based on the principles of parallel distributed processing (PDP). Our results provide good qualitative fits to results obtained in a variety of empirical studies.<\/jats:p>","DOI":"10.1207\/s15516709cog2401_3","type":"journal-article","created":{"date-parts":[[2005,8,6]],"date-time":"2005-08-06T01:39:08Z","timestamp":1123292348000},"page":"93-122","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":41,"title":["Computational Evidence for the Subitizing Phenomenon as an Emergent Property of the Human Cognitive Architecture"],"prefix":"10.1111","volume":"24","author":[{"given":"Scott A.","family":"Peterson","sequence":"first","affiliation":[]},{"given":"Tony J.","family":"Simon","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2000,3]]},"reference":[{"key":"e_1_2_1_2_1","volume-title":"The architecture of cognition","author":"Anderson J. R.","year":"1983"},{"key":"e_1_2_1_3_1","volume-title":"The adaptive character of thought","author":"Anderson J. 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