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Animal Cognition|May 23, 2007
Raking it in: the impact of enculturation on chimpanzee tool useE E Furlong, K J Boose, S T BoysenAnnual Review of Psychology|March 12, 2004
Current issues and emerging theories in animal cognitionS T Boysen, G T HimesJournal of Comparative Psychology (Washington, D.C. : 1983)|January 10, 2001
Spontaneous discrimination of natural stimuli by chimpanzees (Pan troglodytes)D A Brown, S T BoysenJournal of Comparative Psychology (Washington, D.C. : 1983)|March 1, 1989
Numerical competence in a chimpanzee (Pan troglodytes)S T Boysen, G G BerntsonElectroencephalography and Clinical Neurophysiology|March 1, 1985
Visual evoked potentials in the great apesS T Boysen, G G BerntsonBehavioral Neuroscience|October 1, 1984
Cardiac startle and orienting responses in the great apesG G Berntson, S T BoysenJournal of Comparative Psychology (Washington, D.C. : 1983)|October 12, 2001
The effect of response contingencies on scale model task performance by chimpanzees (Pan troglodytes)V A Kuhlmeier, S T BoysenJournal of Comparative Psychology (Washington, D.C. : 1983)|September 1, 1986
Cardiac correlates of individual recognition in the chimpanzee (Pan troglodytes)S T Boysen, G G BerntsonJournal of Comparative Psychology (Washington, D.C. : 1983)|September 1, 1989
Conspecific recognition in the chimpanzee (Pan troglodytes): cardiac responses to significant othersS T Boysen, G G BerntsonJournal of Experimental Psychology. Animal Behavior Processes|January 1, 1995
Responses to quantity: perceptual versus cognitive mechanisms in chimpanzees (Pan troglodytes)S T Boysen, G G BerntsonPageof 3