My research mainly focuses on children’s hand movements, gestures and speech when they learn about Science & Technology tasks. Inspired by complex dynamical systems theory and ecological psychology, I research how children’s hand movements and speech change over time, within a task. Furthermore, I investigate how learning emerges from children’s interactions with their physical and social environment. I research both individual and dyadic learning. I’m an Assistant Professor at the Psychology Department of the University of Groningen.

Methods that I use include video-recording of children’s task performance and coding their gestures and speech, movement tracking using either video-recordings or motion trackers, and audio-recording. Analyses focus on non-linear development, such as Recurrence Quantification Analysis (RQA), fractal analyses, and cross wavelet analysis.
Other projects that I’m involved in are related to gesture-speech coupling in general, to interpersonal coordination, and to communication of deafblind children.


Submitted/Under review

Pouw, W., De Jonge-Hoekstra, L., & Dixon, J.A. (2018). Stabilizing speech production through gesture-speech coordination.


De Jonge-Hoekstra, L. , Cox, R.F.A., Van der Steen, S., & Dixon, J.A. (2021). Easier said than done? Task difficulty’s influence on temporal alignment, semantic similarity, and complexity matching between gestures and speech. Cognitive Science, 45(12989).

Pouw, W., De Jonge-Hoekstra, L., Harrison, S. J., Paxton, A., & Dixon, J. A. (2020). Gesture-speech physics in fluent speech and rhythmic upper limb movements. Annals of the New York Academy of Sciences.

De Jonge-Hoekstra, L., Van Der Steen, S., & Cox, R. F. A. (2020). Movers and shakers of cognition: Hand movements, speech, task properties, and variability. Acta Psychologica, 211, 103187. doi:10.1016/j.actpsy.2020.103187

De Jonge-Hoekstra, L. , Van der Steen, S., Van Geert, P., & Cox, R. F. A. (2016). Asymmetric Dynamic Attunement of Speech and Gestures in the Construction of Children’s Understanding. Frontiers in Psychology , 7 , 1–19.

Cox, R. F.A., Van der Steen, S., Guevara, M., De Jonge-Hoekstra, L., & van Dijk, M. (2016). Chromatic and Anisotropic Cross-Recurrence Quantification Analysis of Interpersonal Behavior. In Recurrence Plots and Their Quantifications: Expanding Horizons (pp. 209-225). Springer International Publishing.