Dr Lydia M. Hopper

I am the Assistant Director of the Lester E Fisher Center for the Study & Conservation of Apes, Lincoln Park Zoo, Chicago, USA. It is my role to oversee the design, coordination, and running of our in-house behavioral and cognitive research with our chimpanzees, gorillas and Japanese macaques. 

Recent publications:
Hopper LM, Cronin KA & Ross SR (2018). 
A multi-institutional assessment of a short-form personality questionnaire for use with macaques. 
Zoo BiologyDOI: 10.1002/zoo.21439

Hopper LM, Egelkamp CE, Fidino M & Ross SR (2018).
An assessment of touchscreens for testing primate food preferences and valuations.
 Behavior Research Methods. DOI: 

Cronin KA, Bethell EJ, Jacobson SJ, Egelkamp CE, Hopper LM & Ross SR. (2018). Evaluating mood changes in response to anthropogenic noise with a response-slowing task in three species of zoo-housed primates. Animal Behavior & Cognition 5(2), 209-221.  

Hansen BK, Fultz AL, Hopper LM & Ross SR (2018). An evaluation of video cameras for collecting observational data on sanctuary-housed chimpanzees (Pan troglodytes). Zoo Biology.