All things animal behavior! Explore these student summaries of exciting new research in animal behavior and cognition!

Monkey can’t see, monkey can’t do

Many people know about the adorable habit of young children, wherein they mimic their parents’ speech with super cute, super incomprehensible gibberish. While it’s absolutely precious, it’s also an important part of their language learning process. However, humans apparently aren’t the only ones who rely on mimicking, and then feedback from, their parents. According to a study done by Yasemin B. Gultekin and Steffen R. Hage in 2017, if you prevent young monkeys from being able to see their parents, their vocalizations will be weak and underdeveloped. They discovered this by separating a group of young marmosets from their parents, and putting half of them in enclosures where they could not see their parents, and half of them in enclosures where they could see their parents, and recorded their vocalizations.  They kept the monkeys in these enclosures from the ages of 3 to 13 months, and upon audio analysis, found that the visually separated young exhibited weaker and less frequent calls than their counterparts. The results show that young monkeys rely heavily on visual feedback from their parents during the development of their vocalization. It also suggests that there must be some sort of signal that the parent is conveying to the young  to aid in this development. So next time you hear your baby babbling, be sure to pay lots of attention to them and give them a big smile, because apparently, they need it!

Gultekin, Y. B., & Hage, S. R. (2017). Limiting parental feedback disrupts vocal development in marmoset monkeys. Nature Communications, 8, 1-9.  dx.doi.org/10.1038/ncomms14046

 

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