Lookit: bringing developmental studies home
The Lookit website allows families to participate in developmental studies online using their own computer and webcam. Why put experiments online? We’re looking to:
work with “real” (more representative) families - not just the folks who live near developmental labs and can come in on weekdays
enable more people to do rigorous developmental research - especially people with ideas that directly benefit kids and families, like early childhood educators
allow researchers to collect larger sample sizes when needed - for instance, to measure graded effects instead of just comparing A and B, or to make studies more robust and reproducible
improve retention in longitudinal studies, and make it possible to try out the sorts of intensive interventions that might really make a difference
observe more natural behavior in the home, rather than the “going on a special trip” behavior we see in the lab
accelerate work with special populations (for example, kids with rare developmental disorders, scattered across the world)
make it easier to share complete protocols and materials so that other scientists can understand and build on a finding
Learn more or participate with your kids at Lookit, view the source code on github (lookit, experimenter, and exp-addons repos), or connect with us on Facebook or Instagram. To stay up-to-date on progress on the platform, you can join the lookit-research mailing list.
Current & planned projects
Intuitive physics & individual differences in preferential looking (with Liz Spelke, Melissa Kline - participate: “Your baby, the physicist”)
Shape sensitivity in 7-month-olds (with Molly Dillon, Liz Spelke - data collection recently completed)
Preschoolers’ politeness judgments (with Erica Yoon, Mike Frank - participate: “Mind and Manners”)
Preschoolers’ expectations of ingroup/outgroup behavior (with Lisa Chalik, Yarrow Dunham - participate: “Flurps and Zazzes”)
Neonatal imitation (with Laurie Bayet)
Approximate number system acuity in deaf and hard-of-hearing children (with Stacee Santos)
Literacy assessment and intervention (with Reaching Every Reader, Harvard/MIT)
Intermodal speech matching (with Halie Olson, Rebecca Saxe)
Automated gaze coding for developmental research
The next bottleneck for running infant studies at scale is coding the data: a human needs to watch the collected video, generally at 1/10 - 1/2 speed depending on the desired granularity, to record where the infant is looking each frame. Algorithms for automated gaze coding from natural-light video (as opposed to measurements from specialized eyetracking hardware) are finally reaching the point where they could be productively adapted for developmental data collection. (Take a look at some examples of running OpenFace on webcam video of babies: 1, 2.) To get involved in efforts in this direction, you can join the baby-gaze-coding mailing list.
What’s it like to be a baby?
My more empirical work has focused on early conscious experience: for instance, how infants merge multiple representations of the same concept; understand the passage of time; and distinguish among imagery, memory, and perception.
Scott, K. M. Split-brain babies? Differences in representation of bilaterally and unilaterally presented visual concepts in infancy. Under revision (preprint).
Scott, K. M. and Kline, M. Enabling confirmatory secondary data analysis by logging data ‘checkout’. (In press.) Advances in Methods and Practices in Psychological Science. (preprint)
Chouinard, B., Scott, K., and Cusack, R. (In press.) Using automatic face analysis to score infant behaviour from video collected online. Infant Behavior and Development. (preprint)
Scott, K. M. and Schulz, L. E. (2017). Lookit (part 1): a new online platform for developmental research. Open Mind 1(1):4-14. (full text)
Scott, K. M., Chu, J., and Schulz, L. E. (2017). Lookit (part 2): Assessing the viability of online developmental research, results from three case studies. Open Mind 1(1):15-29. (full text)
Scott, K.M. & Schulz, L.E. (2014, July). Interhemispheric integration of visual concepts in infancy. Paper presented at the annual meeting of the Cognitive Science Society, Quebec City, Canada. (pdf)
Scott, K. M., Du, J., Lester, H. A., & Masmanidis, S. C. (2012). Variability of acute extracellular action potential measurements with multisite silicon probes. Journal of Neuroscience Methods 211(1), 22-30. (pdf)
Moss, F. J., Imoukhuede, P. I., Scott, K., Hu, J., Jankowsky, J. L., Quick, M. W., & Lester, H. A. (2009). GABA transporter function, oligomerization state, and anchoring: correlates with subcellularly resolved FRET. The Journal of general physiology, 134(6), 489-521. (full text)
PhD thesis: Online data collection for developmental research. (Thesis commons)