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Then, we demonstrate the chaotic behavior in such a neuron with sinusoidal external input, via computer simulations. Finally, we study the chaotic behaviors in tabu learning two-neuron models, with linear and quadratic proximity functions respectively. <\/jats:p>","DOI":"10.1142\/s0218127405013575","type":"journal-article","created":{"date-parts":[[2005,9,29]],"date-time":"2005-09-29T09:34:54Z","timestamp":1127986494000},"page":"2633-2642","source":"Crossref","is-referenced-by-count":41,"title":["HOPF BIFURCATION AND CHAOS IN TABU LEARNING NEURON MODELS"],"prefix":"10.1142","volume":"15","author":[{"given":"CHUNGUANG","family":"LI","sequence":"first","affiliation":[{"name":"Institute of Electronic Systems, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. 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