Erin McKenna
Nicole McEwen

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Click for References of material used in video.

• Shalini, A., & Sreedharan, S. (2006). A complex, contagious, evolutionary habit. Annals of the Academy of Medicine, Singapore, 35, 433-434.
• Sarnecki, J. (2008). Content and contagion in yawning. Philosophical Psychology, 21, 721-737.
• Giganti, F., & Ziello, M.E. (2009). Contagious and spontaneous yawning in autistic and typically developing children. Current Psychology Letters, 25, 2-11.
• Joly-Mascheroni, R.M., Senju, A., & Shepherd, A.J. (2008). Dogs catch human yawns. Biology Letters, 4, 446-448.

More to Explore

• Anderson, J.R., Myowa-Yamakoshi, M., & Matsuzawa, T. (2004). Contagious yawning in Chimpanzees. Proceedings: Biological Sciences, 271, S468-S470.
• Campbell, M.W., Carter, J.D., Proctor, D., Eisenberg, M.L., & de Waal, F.B.M. (2010). Computer animations stimulate contagious yawning in chimpanzees. Proceedings of the Royal Society, 276, 4255-4259.
• Hadidian, J. (1980). Yawning in an old world monkey, Macaca nigra. Behavior, 75, 133-147.
• Harr, A.L., Gilbert, V.R., & Phillips, K.A. (2009). Do dogs (Canis familiaris) show contagious yawning? Animal Cognition, 12, 833-837.
• Nahab, F.B., Hattori, N., Saad, Z.S., & Hallett, M. (2009). Contagious yawning and the frontal lobe: An fMRI study. Human Brain Mapping, 30, 1744-1751.
• Palagi, E., Leone, A., Mancini, G., & Ferrari, P.F. (2009). Contagious yawning in gelada baboons as a possible expression of empathy. PNAS, 106, 19262-19267.
• Vick, S.J., & Paukner, A. (2010). Variation and context of yawns in captive chimpanzees. American Journal of Primatology, 72, 262-269.