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Pigeons spontaneously form three-dimensional shape categories.
Peissig JJ, Young ME, Wasserman EA, Biederman I. Peissig JJ, et al. Behav Processes. 2019 Jan;158:70-76. doi: 10.1016/j.beproc.2018.11.003. Epub 2018 Nov 12. Behav Processes. 2019. PMID: 30439476 Free PMC article.
Associative concept learning in animals.
Zentall TR, Wasserman EA, Urcuioli PJ. Zentall TR, et al. J Exp Anal Behav. 2014 Jan;101(1):130-51. doi: 10.1002/jeab.55. Epub 2013 Oct 29. J Exp Anal Behav. 2014. PMID: 24170540 Free PMC article. Review.
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