Justin N Wood
Associate Professor of Informatics
Myles Brand Hall 227
- Ph.D. in Psychology at Harvard University, 2008
- M.A. in Psychology at Harvard University, 2005
- B.A. in Psychology at University of Virginia, 2002
One of the great unsolved mysteries in science concerns the origins of intelligence. What are the learning mechanisms in newborn brains? What role does experience play in the development of knowledge? To address these questions, my lab uses a two-pronged approach.
First, we perform controlled-rearing experiments, using newborn chicks as a model system. We raise chicks in strictly controlled virtual worlds and record their behavior 24/7 as they learn to perceive and understand their environment. Fueled by interactive video game engines, we can explore how foundational abilities (e.g., object perception) emerge in newborn brains.
Second, we perform parallel experiments on autonomous artificial agents, using virtual controlled-rearing chambers. We raise newborn animals and artificial agents in the same environments, and test whether they develop the same abilities when given the same experiences. The agents’ brains can be equipped with different biologically-inspired learning mechanisms (e.g., deep reinforcement learning, curiosity-driven learning), so by comparing the animals and agents, we can test which learning mechanisms are needed to model the development of intelligence.
By linking psychology to artificial intelligence, we aim to reverse engineer the origins of intelligence and build machines that learn like newborn animals. Our ultimate goal is to build end-to-end (pixels-to-actions) artificial agents that mimic cognitive development in newborn animals.
More generally, I am interested in a wide range of questions about the origins and nature of intelligence. I have studied the psychological abilities of diverse populations, including human adults, toddlers, infants, chimpanzees, wild monkeys, and newborn chicks. My research is supported by grants from the National Science Foundation and the James McDonnell Foundation.
- Bioinformatics and Computational Biology
- Artificial Intelligence
- Complex Networks and Systems
- Intelligent Interactive Systems
- Machine Learning
- Cognitive Science