The central interest of research in the Action Lab is the acquisition and control of goal-directed human movements. What organizational principles are at work in movement coordination? What principles guide the acquisition of novel skills? Specifically, our research focuses on the acquisition of novel perceptual-motor skills and on the manipulation of complex objects. The theoretical framework that pervades our studies interprets the actor as a dynamical system, which is high-dimensional, nonlinear, and capable of producing coordinated and adaptive actions. Our research pursues a three-pronged research strategy consisting of:
- an empirical component with behavioral experiments on human subjects using virtual environments,
- theoretical work which develops mathematical models of the behavioral task using dynamical systems, and
- brain imaging and stimulation studies that investigate the cerebral activity accompanying coordinated actions.
More recently, we have extended these experimental paradigms to individuals with neurological disorders such as dystonia and autism and to the elderly.
Our research is supported by the National Institutes of Health (R01-HD087089, R01-HD081346, R21-DC013095) and the National Science Foundation (NSF-EAGER 1548514, NSF-NRI 1637854).
Action Lab News
On May 26, our team completed the outreach activity at the Museum of Science on: “Catch the mouse: Prediction in interaction with dynamic objects.” Between June 2017 and May 2018 our team collected 449 subjects: Hannah Tam, Se-Woong Park, Rashida Nayeem, Zhaoran Zhang, Abigail Cahill, Jim Papadopoulos, Salah Bazzi, Michael Graham, Jeffrey Zhu, Anne Sigl, Ellesse Cooper, Oliver Cervantes, Kaleb Noruzi, and Sasha Dubinsky (in no specific order). The video shows the 3-person shift on the final day: Abigail Cahill, Jeffrey Zhu and Oliver Cervantes. Congratulations!
Salah Bazzi had his paper to ICRA 2018 accepted only 6 months after starting in the lab. Continue!
Zhaoran Zhang received the Award for Outstanding Graduate Research from the College of Engineering. Well deserved!
After 17 interviews for Medical School, and 10 offers Dena Guo is heading to Cleveland Clinic with a full scholarship and stipend. Wonderful!!
Dagmar gave a TEDx talk at Northeastern which should be posted soon.
In August, the Newman lab and the Action Lab convened to our 6th Lab Advance, exchanging our research successes.
On May 16, Jooeun Ahn, previously postdoc in our Action Lab, has appeared on Korean television as expert engineer from Soul National University evaluating the suit of Korean ice skaters. Jooeun is the second trainee of our lab who has become a TV star ! :-)
Selected Recent Publications
- Nasseroleslami, B., Hasson, C.J., & Sternad, D. (2014). Rhythmic manupulation of objects with complex dynamics: Predictability over chaos. PLoS Computational Biology, 10(10),e1003900.
- Park, S.-W., Dijkstra, T.M.H., & Sternad, D. (2013). Learning to never forget - time scales and specificity of long-term memory of a motor skill. Frontiers in Computational Neuroscience, 7:111.
- Sternad,D., Abe, M.O., Hu, X., & Muller, H. (2011). Neuromotor noise, error tolerance and velocity- dependent costs in skilled performance. PLoS Computational Biology, 7(9), e1002159.
- Sternad, D., Park, S.-W., Muller, H., & Hogan, N. (2010). Coordinate dependence of variability analysis. PLoS Computational Biology, 6(4), e1000751.