1. Pigeons exhibit higher accuracy for chosen memory tests than for forced memory tests in duration matching-to-sample;Adams;Learn. Behav.,2011
2. Basic Color Terms: Their Universality and Evolution;Berlin,1969
3. Theoretical implications of directed forgetting;Bjork,1972
4. Delayed matching in the pigeon;Blough;J. Exp. Anal. Behav.,1959
5. Two-choice conditional discrimination performance of pigeons as a function of reward expectancy, prechoice delay, and domesticity;Brodigan;Anim. Learn. Behav.,1976