We use a number of non-invasive techniques to study the behavior and minds of animals. Here, Dr. Krupenye does eye-tracking with Kanzi, a bonobo living at Ape Initiative - a science and education nonprofit.
Publications
All papers are available for personal or academic use upon request ([email protected])
35. Krupenye, C. (in press). Divergence in bonobo and chimpanzee social life. Learning & Behavior
34. Krupenye, C., Carvajal, L., & Bastos, A. P. M. (in press). Psychological mechanisms for individual recognition- and anonymous-societies in humans and other animals. Behavioral and Brain Sciences
33. Westra, E., Fitzpatrick, S., Brosnan, S., Gruber, T., Hobaiter, C., Hopper, L., Kelly, D., Krupenye, C., Luncz, L., Theriault, J., & Andrews, K. (2024). In search of animal normativity: a framework for studying social norms in nonhuman animals. Biological Reviews, 10.1111/brv.13056.
32. Lewis, L.S., Wessling, E.G., Kano, F., Stevens, J.M.G., Call, J., & Krupenye, C. (2023). Bonobos and chimpanzees remember familiar conspecifics for decades. Proceedings of the National Academy of Sciences, 120(52): e2304903120. doi: 10.1073/pnas.2304903120.
31. Lewis, L.S., & Krupenye, C. (2022). Theory of mind in nonhuman primates. In B.L. Schwartz & M.J. Beran (Eds.) Primate Cognitive Studies. Cambridge University Press.
30. Farrar, B., Altschul, D., Fischer, J., Tennie, C., Ostojic, L., Krupenye, C., & Rodrigo, A. (2022). Replication and reproducibility in primate cognition research. In B.L. Schwartz & M.J. Beran (Eds.) Primate Cognitive Studies. Cambridge University Press.
29. Lewis, L.S., & Krupenye, C. (2022). Eye-tracking as a window into primate social cognition. American Journal of Primatology. doi: 10.1002/ajp.23393.
28. Kano, F., Furuichi, T., Hashimoto, C., Krupenye, C., Leinwand, J.G., Hopper, L.M., Martin, C.F., Otsuka, R., & Tajima, T. (2022). What is so unique about the human eye? Comparative image analysis on the external eye morphology of human and nonhuman great apes. Evolution and Human Behaviour. doi: 10.1016/j.evolhumbehav.2021.12.004
27. Durdevic, K, & Krupenye, C. (2021). Representing knowledge, belief, and everything in between: Representational complexity in humans and other apes. Behavioral and Brain Sciences, 44: e150. doi: 10.1017/S0140525X20001855.
26. Amodio, P., Farrar, B.G., Krupenye, C., Ostojić, L., & Clayton, N. (2021). Little evidence that Eurasian jays protect their caches by responding to cues about a conspecific’s desire and visual perspective. eLife, 10, e69647. doi: 10.7554/eLife.69647.
25. Feldblum, J., Krupenye, C., Bray, J., Pusey, A.E., & Gilby, I.C. (2021). Social bonds provide multiple pathways to reproductive success in wild male chimpanzees. iScience, 24, 102864.
24. Lewis, L.S., Kano, F., Stevens, J.M.G., DuBois, J.G., Call, J., & Krupenye, C. (2021). Bonobos and chimpanzees preferentially attend to familiar members of the dominant sex. Animal Behaviour, 177, 193-206.
23. Hopper, L. M., Gulli, R. A., Howard, L. M., Kano, F., Krupenye, C., Ryan, A., & Paukner, A. (2020). The application of non-invasive, restraint-free eye-tracking methods for use with nonhuman primates. Behavior Research Methods. doi: 10.3758/s13428-020-01465-6.
22. Krupenye, C. (2020). The evolution of mentalizing in humans and other primates. In M. Gilead & K. Ochsner (Eds.) The Neural Basis of Mentalizing: A Social-Cognitive and Affective Neuroscience Perspective. Springer Press.
21. Kano, F., Call, J., & Krupenye, C. (2020). Primates pass dynamically social anticipatory-looking false belief tests. Trends in Cognitive Sciences, doi: 10.1016/j.tics.2020.07.003.
20. Bowie, A., Krupenye, C., Mbonzo, P., Minesi, F., & Hare, B. (2020). Implicit measures help demonstrate the value of conservation education in the Democratic Republic of the Congo. Frontiers in Psychology. doi: 10.3389/fpsyg.2020.00386.
19. Kano, F., Krupenye, C., Hirata, S., Tomonaga, M., & Call, J. (2019). Great apes use self- experience to anticipate an agent’s action in a false belief test. Proceedings of the National Academy of Sciences, 116(42), 20904-20909. doi: 10.1073/pnas.1910095116.
18. Krupenye, C. & Call, J. (2019). Theory of mind in animals: Current and future directions. WIREs Cognitive Science, e1503. read-only link
17. Krupenye, C., Tan, J., & Hare, B. (2018). Bonobos voluntarily hand food to others but not toys or tools. Proceedings of the Royal Society B. 285(1886): 20181536. doi: 10.1098/rspb.2018.1536.
16. Kano, F., Moore, R., Krupenye, C., Hirata, S., Tomonaga, M., & Call, J. (2018). Human ostensive signals do not enhance gaze-following in chimpanzees but do enhance object-oriented attention. Animal Cognition. 21(5): 715-728. doi: https://doi.org/10.1007/s10071-018-1205-z.
15. Krupenye, C., and Hare, B. (2018). Bonobos prefer individuals that hinder others over those that help. Current Biology. 28(2): 280-286. doi: 10.1016/j.cub.2017.11.061.
14. Krupenye, C., MacLean, E. L., and Hare, B. (2017). Does the bonobo have a (chimpanzee-like) theory of mind? In B. Hare & S. Yamamoto (Eds.) Bonobos: Unique in Mind, Brain, and Behavior. Oxford University Press. DOI: 10.1093/oso/9780198728511.003.0006.
13. Kano, F.*, Krupenye, C.*, Hirata, S., Call, J., and Tomasello, M. (2017). Submentalizing cannot explain belief-based action anticipation in apes. Trends in Cognitive Sciences. 21(9): 633-634. doi: http://dx.doi.org/10.1016/j.tics.2017.06.011.
12. Krupenye, C.*, Kano, F.*, Hirata, S., Call, J., and Tomasello, M. (2017). A test of the submentalizing hypothesis: Apes’ performance in a false belief task inanimate control. Communicative & Integrative Biology. 10(4): e1343771.
11. Krupenye, C. (2017). Guesser-knower paradigm. Encylopedia of Animal Cognition and Behavior. doi: 10.1007/978-3-319-47829-6_1605-1.
10. Kano, F., Krupenye, C., Hirata, S., and Call, J. (2017). Eye tracking uncovered great apes' ability to anticipate that other individuals will act according to false beliefs. Communicative & Integrative Biology. 10(2): e1299836.
9. Krupenye, C.*, Kano, F.*, Hirata, S., Call, J., and Tomasello, M. (2016). Great apes anticipate that other individuals will act according to false beliefs. Science, 354(6308): 110-114. doi: 10.1126/science.aaf8110. -selected by Science as one of the top ten breakthroughs of 2016
8. Reddy, R. B., Krupenye, C., MacLean, E. L., and Hare, B. (2016). No evidence for contagious yawning in lemurs. Animal Cognition, 19(5): 889-898. doi: 10.1007/s10071-016-0986-1.
7. Krupenye, C., Rosati, A. G., and Hare, B. (2016). What’s in a frame? Response to Kanngiesser & Woike (2016). Biology Letters, 12(1): 20150959. doi: 10.1098/rsbl.2015.0959.
6. Foerster, S., McLellan, K., Schroepfer-Walker, K., Murray, C., Krupenye, C., Gilby, I.C., and Pusey, A. (2015). Social bonds in the dispersing sex: partner preferences among adult female chimpanzees. Animal Behaviour, 105: 139-152. doi: 10.1016/j.anbehav.2015.04.012.
5. Krupenye, C., Rosati, A.G., and Hare, B. (2015). Bonobos and chimpanzees exhibit human-like framing effects. Biology Letters, 11(2). doi: 10.1098/rsbl.2014.0527.
4. MacLean, E., Krupenye, C., and Hare, B. (2014). Dogs account for body orientation but not visual barriers when responding to pointing gestures. Journal of Comparative Psychology, 128(3): 285-297. doi: 10.1037/a0035742.
3. Bray, J., Krupenye, C., and Hare, B. (2014). Ring-tailed lemurs (Lemur catta) exploit information about what others can see but not what they can hear. Animal Cognition, 17(3): 735-744. doi: 10.1007/s10071-013-0705-0
2. Rosati, A.G., Herrmann, E., Kaminski, J., Krupenye, C., Melis, A.P., Schroepfer, K., Tan, J., Warneken, F., Wobber, V. & Hare, B. (2012). Assessing the psychological health of captive and wild apes: A response to Ferdowsian et al. (2011). Journal of Comparative Psychology, 127(3): 329-336. doi: 10.1037/a0029144.
1. Gruber, T., Potts, K.B., Krupenye, C., Byrne, M., Mackworth-Young, C., McGrew, W.C., Reynolds, V., & Zuberbuhler, K. (2012). The influence of ecology on chimpanzee cultural behavior: A case study of five Ugandan chimpanzee communities. Journal of Comparative Psychology, 126(4): 446-57. doi: 10.1037/a0028702.
35. Krupenye, C. (in press). Divergence in bonobo and chimpanzee social life. Learning & Behavior
34. Krupenye, C., Carvajal, L., & Bastos, A. P. M. (in press). Psychological mechanisms for individual recognition- and anonymous-societies in humans and other animals. Behavioral and Brain Sciences
33. Westra, E., Fitzpatrick, S., Brosnan, S., Gruber, T., Hobaiter, C., Hopper, L., Kelly, D., Krupenye, C., Luncz, L., Theriault, J., & Andrews, K. (2024). In search of animal normativity: a framework for studying social norms in nonhuman animals. Biological Reviews, 10.1111/brv.13056.
32. Lewis, L.S., Wessling, E.G., Kano, F., Stevens, J.M.G., Call, J., & Krupenye, C. (2023). Bonobos and chimpanzees remember familiar conspecifics for decades. Proceedings of the National Academy of Sciences, 120(52): e2304903120. doi: 10.1073/pnas.2304903120.
31. Lewis, L.S., & Krupenye, C. (2022). Theory of mind in nonhuman primates. In B.L. Schwartz & M.J. Beran (Eds.) Primate Cognitive Studies. Cambridge University Press.
30. Farrar, B., Altschul, D., Fischer, J., Tennie, C., Ostojic, L., Krupenye, C., & Rodrigo, A. (2022). Replication and reproducibility in primate cognition research. In B.L. Schwartz & M.J. Beran (Eds.) Primate Cognitive Studies. Cambridge University Press.
29. Lewis, L.S., & Krupenye, C. (2022). Eye-tracking as a window into primate social cognition. American Journal of Primatology. doi: 10.1002/ajp.23393.
28. Kano, F., Furuichi, T., Hashimoto, C., Krupenye, C., Leinwand, J.G., Hopper, L.M., Martin, C.F., Otsuka, R., & Tajima, T. (2022). What is so unique about the human eye? Comparative image analysis on the external eye morphology of human and nonhuman great apes. Evolution and Human Behaviour. doi: 10.1016/j.evolhumbehav.2021.12.004
27. Durdevic, K, & Krupenye, C. (2021). Representing knowledge, belief, and everything in between: Representational complexity in humans and other apes. Behavioral and Brain Sciences, 44: e150. doi: 10.1017/S0140525X20001855.
26. Amodio, P., Farrar, B.G., Krupenye, C., Ostojić, L., & Clayton, N. (2021). Little evidence that Eurasian jays protect their caches by responding to cues about a conspecific’s desire and visual perspective. eLife, 10, e69647. doi: 10.7554/eLife.69647.
25. Feldblum, J., Krupenye, C., Bray, J., Pusey, A.E., & Gilby, I.C. (2021). Social bonds provide multiple pathways to reproductive success in wild male chimpanzees. iScience, 24, 102864.
24. Lewis, L.S., Kano, F., Stevens, J.M.G., DuBois, J.G., Call, J., & Krupenye, C. (2021). Bonobos and chimpanzees preferentially attend to familiar members of the dominant sex. Animal Behaviour, 177, 193-206.
23. Hopper, L. M., Gulli, R. A., Howard, L. M., Kano, F., Krupenye, C., Ryan, A., & Paukner, A. (2020). The application of non-invasive, restraint-free eye-tracking methods for use with nonhuman primates. Behavior Research Methods. doi: 10.3758/s13428-020-01465-6.
22. Krupenye, C. (2020). The evolution of mentalizing in humans and other primates. In M. Gilead & K. Ochsner (Eds.) The Neural Basis of Mentalizing: A Social-Cognitive and Affective Neuroscience Perspective. Springer Press.
21. Kano, F., Call, J., & Krupenye, C. (2020). Primates pass dynamically social anticipatory-looking false belief tests. Trends in Cognitive Sciences, doi: 10.1016/j.tics.2020.07.003.
20. Bowie, A., Krupenye, C., Mbonzo, P., Minesi, F., & Hare, B. (2020). Implicit measures help demonstrate the value of conservation education in the Democratic Republic of the Congo. Frontiers in Psychology. doi: 10.3389/fpsyg.2020.00386.
19. Kano, F., Krupenye, C., Hirata, S., Tomonaga, M., & Call, J. (2019). Great apes use self- experience to anticipate an agent’s action in a false belief test. Proceedings of the National Academy of Sciences, 116(42), 20904-20909. doi: 10.1073/pnas.1910095116.
18. Krupenye, C. & Call, J. (2019). Theory of mind in animals: Current and future directions. WIREs Cognitive Science, e1503. read-only link
17. Krupenye, C., Tan, J., & Hare, B. (2018). Bonobos voluntarily hand food to others but not toys or tools. Proceedings of the Royal Society B. 285(1886): 20181536. doi: 10.1098/rspb.2018.1536.
16. Kano, F., Moore, R., Krupenye, C., Hirata, S., Tomonaga, M., & Call, J. (2018). Human ostensive signals do not enhance gaze-following in chimpanzees but do enhance object-oriented attention. Animal Cognition. 21(5): 715-728. doi: https://doi.org/10.1007/s10071-018-1205-z.
15. Krupenye, C., and Hare, B. (2018). Bonobos prefer individuals that hinder others over those that help. Current Biology. 28(2): 280-286. doi: 10.1016/j.cub.2017.11.061.
14. Krupenye, C., MacLean, E. L., and Hare, B. (2017). Does the bonobo have a (chimpanzee-like) theory of mind? In B. Hare & S. Yamamoto (Eds.) Bonobos: Unique in Mind, Brain, and Behavior. Oxford University Press. DOI: 10.1093/oso/9780198728511.003.0006.
13. Kano, F.*, Krupenye, C.*, Hirata, S., Call, J., and Tomasello, M. (2017). Submentalizing cannot explain belief-based action anticipation in apes. Trends in Cognitive Sciences. 21(9): 633-634. doi: http://dx.doi.org/10.1016/j.tics.2017.06.011.
12. Krupenye, C.*, Kano, F.*, Hirata, S., Call, J., and Tomasello, M. (2017). A test of the submentalizing hypothesis: Apes’ performance in a false belief task inanimate control. Communicative & Integrative Biology. 10(4): e1343771.
11. Krupenye, C. (2017). Guesser-knower paradigm. Encylopedia of Animal Cognition and Behavior. doi: 10.1007/978-3-319-47829-6_1605-1.
10. Kano, F., Krupenye, C., Hirata, S., and Call, J. (2017). Eye tracking uncovered great apes' ability to anticipate that other individuals will act according to false beliefs. Communicative & Integrative Biology. 10(2): e1299836.
9. Krupenye, C.*, Kano, F.*, Hirata, S., Call, J., and Tomasello, M. (2016). Great apes anticipate that other individuals will act according to false beliefs. Science, 354(6308): 110-114. doi: 10.1126/science.aaf8110. -selected by Science as one of the top ten breakthroughs of 2016
8. Reddy, R. B., Krupenye, C., MacLean, E. L., and Hare, B. (2016). No evidence for contagious yawning in lemurs. Animal Cognition, 19(5): 889-898. doi: 10.1007/s10071-016-0986-1.
7. Krupenye, C., Rosati, A. G., and Hare, B. (2016). What’s in a frame? Response to Kanngiesser & Woike (2016). Biology Letters, 12(1): 20150959. doi: 10.1098/rsbl.2015.0959.
6. Foerster, S., McLellan, K., Schroepfer-Walker, K., Murray, C., Krupenye, C., Gilby, I.C., and Pusey, A. (2015). Social bonds in the dispersing sex: partner preferences among adult female chimpanzees. Animal Behaviour, 105: 139-152. doi: 10.1016/j.anbehav.2015.04.012.
5. Krupenye, C., Rosati, A.G., and Hare, B. (2015). Bonobos and chimpanzees exhibit human-like framing effects. Biology Letters, 11(2). doi: 10.1098/rsbl.2014.0527.
4. MacLean, E., Krupenye, C., and Hare, B. (2014). Dogs account for body orientation but not visual barriers when responding to pointing gestures. Journal of Comparative Psychology, 128(3): 285-297. doi: 10.1037/a0035742.
3. Bray, J., Krupenye, C., and Hare, B. (2014). Ring-tailed lemurs (Lemur catta) exploit information about what others can see but not what they can hear. Animal Cognition, 17(3): 735-744. doi: 10.1007/s10071-013-0705-0
2. Rosati, A.G., Herrmann, E., Kaminski, J., Krupenye, C., Melis, A.P., Schroepfer, K., Tan, J., Warneken, F., Wobber, V. & Hare, B. (2012). Assessing the psychological health of captive and wild apes: A response to Ferdowsian et al. (2011). Journal of Comparative Psychology, 127(3): 329-336. doi: 10.1037/a0029144.
1. Gruber, T., Potts, K.B., Krupenye, C., Byrne, M., Mackworth-Young, C., McGrew, W.C., Reynolds, V., & Zuberbuhler, K. (2012). The influence of ecology on chimpanzee cultural behavior: A case study of five Ugandan chimpanzee communities. Journal of Comparative Psychology, 126(4): 446-57. doi: 10.1037/a0028702.