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We start by illustrating the challenge by applying two conventional analytical methods to a well\u2010known Dynamicist model of categorical perception. We then introduce our own analysis, which works by analogy with neural stimulation methods, and which yields some novel insights into the way the model works. We then extend and apply the method to a second Dynamicist model, which captures the key psychophysical trends that emerge when humans and animals compare two numbers. The results of the analysis\u2014which reveals units with tuning functions that are monotonically related to the magnitudes of the numbers that the agents must compare\u2014offer a clear contribution to the contentious debate concerning the way number information is encoded in the brain.<\/jats:p>","DOI":"10.1111\/j.1551-6709.2009.01079.x","type":"journal-article","created":{"date-parts":[[2010,3,17]],"date-time":"2010-03-17T13:43:27Z","timestamp":1268833407000},"page":"406-433","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Through Neural Stimulation to Behavior Manipulation: A Novel Method for Analyzing Dynamical Cognitive Models"],"prefix":"10.1111","volume":"34","author":[{"given":"Thomas","family":"Hope","sequence":"first","affiliation":[]},{"given":"Ivilin","family":"Stoianov","sequence":"additional","affiliation":[]},{"given":"Marco","family":"Zorzi","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2010,3,17]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1162\/08997660360581949"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1088\/0954-898X_3_2_009"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/0004-3702(94)00005-L"},{"key":"e_1_2_7_5_1","first-page":"421","volume-title":"Proceedings of the 4th international conference on the simulation of adaptive behaviour","author":"Beer R. 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