research

My research focuses on the development of perception and action across the lifespan. I completed my PhD with Karen Adolph in 2011. I am currently a post-doctoral fellow working with Karen Adolph and David Heeger studying visual development.

Head-Mounted Eye-Tracking with Mobile Infants

Research in developmental psychology puts a lot of stock in rough measures of infants' eye gaze. Preferential looking, habituation, and violation of expectation are methods that have been used to study everything from perceptual to social development, however, these methodologies constrain infants' movements and involve limited visual displays. In the real world, infants are free to explore their surroundings — they walk and crawl, manipulate objects, and interact with caregivers. In collaboration with Jason Babcock of Positive Science, we developed a method for tracking locomoting infants' eye gaze during unconstrained, spontaneously produced interactions. Click here to read a feature about this project in the NY Times science section.



 

The left panel shows an infant wearing the wireless, head-mounted eye-tracker. The headgear attaches to a velcro hat to keep it securely in place. Two miniature cameras record the infants' eye and field of view, and transmit wirelessly to a computer for real-time gaze processing. The right panel shows an infant and mother playing from the 3rd person view (top) and infant's 1st person view (bottom). The red crosshair indicates the infant's eye gaze, and the inset shows the infant's eye. See my reprints page for related publications.