Suggested by Emmanuelle Tognoli:
Scholz, J.P. and Schöner, G., 1999. The uncontrolled manifold concept: identifying control variables for a functional task. Experimental brain research, 126(3), pp.289-306.
https://link.springer.com/content/pdf/10.1007/s002210050738.pdf
Pillai, A.S. and Jirsa, V.K., 2017. Symmetry breaking in space-time hierarchies shapes brain dynamics and behavior. Neuron, 94(5), pp.1010-1026.
Suggested by Raeed:
Steve Strogatz's course on nonlinear dynamical systems: https://youtube.com/playlist?list=PLbN57C5Zdl6j_qJA-pARJnKsmROzPnO9V