Professional Lecture Series: Lee Dugatkin, PhD
Dr. Sofia Bernstein
Title: Cries & Whispers: The Possibility of Vocal Control in Monkeys and Apes
Description: Ethological studies do not generally acknowledge the semiotic capabilities of nonhuman animals or attempt to analyze the Umwelten of other species; this creates a human-centric bias in our interpretations of animal cognition and behavior. There is a need for a philosophical shift away from the stimulus-response model towards a framework where semiotic theory is applied to empirical data from the field. A recent study conducted by Dr. Bernstein and Baranna Baker applied biosemiotic methods and analyses to the results from gibbon vocal learning studies and Tibetan macaque control of vocal signal output based on audience proximity. Results suggest that signalers may be adjusting signal output, and that there is a complex cost-benefit tradeoff individuals have to navigate when they produce a mating signal. A biosemiotic approach reveals cognitive complexity and a species’ ability to recognize their and others’ agency, and ultimately enriches our understandings of the seemingly intangible inner worlds of other animals.