Lydia Hopper, Ph.D.

Lydia Hopper

I joined the Language Research Center in January 2010 and I am a Post Doctoral Associate working with Dr Sarah Brosnan on an NSF-funded project entitled ‘Understanding Responses to Inequitable Outcomes in Non-human Primates’.

I gained my PhD in 2008 from the University of St Andrews, UK, where I was supervised by Professor Andrew Whiten in the School of Psychology. The focus of this research was identifying the underlying mechanisms of social learning. For this I used a comparative approach, studying both human children and nonhuman primates, namely chimpanzees. I believe that this is an engaging topic because it has implications for the evolution of human culture as well as providing a fundamental understanding of learning strategies employed by us and other species. Through my on-going collaboration with Dr. Rachel Kendal, Durham University, UK, I maintain my involvement in this area and we are currently developing statistical methods for the identification of social learning among wild populations of animals.

After the completion of my PhD I was an ESRC Postdoctoral Fellow working with Dr. Emma Flynn, Durham University, UK, researching social learning in children for a project entitled ‘The Development of Social Learning in Children: The Interplay Between Imitation and Emulation’.

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Relevant Publications

Hopper, L.M., Lambeth, S.P. & Schapiro, S.J. (2012). An evaluation of the efficacy of video displays for use with chimpanzees (Pan troglodytes). American Journal of Primatology. (doi: 10.1002/ajp.22001)

Caldwell. C.A., Schillinger, K., Evans, C.L., & Hopper, L.M. (2012). End state copying by humans (Homo sapiens): Implications for a comparative perspective on cumulative culture. Journal of Comparative Psychology. (doi: 10.1037/a0026828)

Hopper, L. M., Schapiro, S. J., Lambeth, S. P. & Brosnan, S. F. (2011). Chimpanzees' socially maintained food preferences indicate both conservatism and conformity. Animal Behaviour, 81, 1195-1202.

Hopper, LM., Flynn, EG, Wood, LAN & Whiten, A (2010) Observational learning of tool use in children: Investigating cultural spread through diffusion chains and learning mechanisms through ghost displays. Journal of Experimental Child Psychology. 106: 82-97

Hopper, LM (2010) 'Ghost' experiments and the dissection of social learning in humans and animals. Biological Reviews. 85(4), 685-701.

Hopper, L.M. 2010. Deferred imitation in children and apes. Children imitate after a delay, but can apes ape in a similar fashion? The Psychologist. 23, 294-297.

Whiten, A., McGuigan, N, Marshall-Pescini, S & Hopper, LM (2009) Emulation, imitation, over-imitation and the scope of culture for child and chimpanzee. Philosophical Transactions of the Royal Society: B. 364: 2417-2428

Hopper, LM, Lambeth, SP, Schapiro, SJ & Whiten, A (2008) Observational learning in chimpanzees and children studied through 'ghost' conditions. Proceedings of the Royal Society: B. 275: 835-840

Hopper, LM, Spiteri, A, Lambeth, SP, Schapiro, SJ, Horner, V & Whiten, A (2007) Experimental studies of traditions and underlying transmission processes in chimpanzees. Animal Behaviour. 73: 1021-1032