S T Boysen

Comprehension of cause-effect relations in a tool-using task by chimpanzees (Pan troglodytes).

E. Visalberghi, L. Limongelli, S. Boysen, 1995, Journal of comparative psychology.

Indicating acts during counting by a chimpanzee (Pan troglodytes).

S T Boysen, G G Berntson, T A Shreyer, 1995, Journal of comparative psychology.

Vocal perception: brain event-related potentials in a chimpanzee.

G. Berntson, S. Boysen, M. Torello, 1993, Developmental psychobiology.

Numerical competence in a chimpanzee (Pan troglodytes).

G. Berntson, S. Boysen, S T Boysen, 1989, Journal of comparative psychology.

Conspecific recognition in the chimpanzee (Pan troglodytes): cardiac responses to significant others.

G. Berntson, S. Boysen, S T Boysen, 1989, Journal of comparative psychology.

Quantity-based interference and symbolic representations in chimpanzees (Pan troglodytes).

J. Cacioppo, G. Berntson, S. Boysen, 1996, Journal of experimental psychology. Animal behavior processes.

Processing of ordinality and transitivity by chimpanzees (Pan troglodytes).

G. Berntson, K. Quigley, S. Boysen, 1993, Journal of comparative psychology.

Responses to quantity: perceptual versus cognitive mechanisms in chimpanzees (Pan troglodytes).

G. Berntson, S. Boysen, S T Boysen, 1995, Journal of experimental psychology. Animal behavior processes.