My ruffed lemur (Varecia spp.) color vision research is at Duke Lemur Center in Durham, North Carolina, USA. We trained the lemurs to use a cognitive touchscreen apparatus to show us if they can differentiate red from green.

 

This device, aptly named SMARTA for Subject-Mediated Automatic Remote Testing Apparatus was designed to train and test ruffed lemurs using two-choice discrimination tasks. We also collected blood samples and genotyped them at Primate Molecular Ecology Lab (PMEL) at Hunter College of The City University of New York to confirm their color vision genotypes.

 

In addition, we are looking to answer whether SMARTA can be a positive reinforcer and can be used to promote good welfare by giving the lemurs a choice: get food for free or working for it.

Lastly, we are also analyzing the hand preference of these lemurs when performing cognitive tasks to better understand laterality in ruffed lemurs.

If you are interested in working with me as my research assistant, contact me. 

 

Please click here for a description of the research assistant position.

Photo by David Haring (Duke Lemur Center)

Photo by Raymond Vagell

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© 2019 by Raymond Vagell