Freezefoot Videos used as experimental stimuli for functional transcranial Doppler ultrasound studies of cerebral lateralisation in children, as used in these publications: Bishop, D. V. M., Badcock, N. A., & Holt, G. (2010). Assessment of cerebral lateralization in children using functional transcranial Doppler ultrasound (fTCD). Journal of Visualized Experiments(43), e2161. Bishop, D. V. M., Watt, H., & Papadatou-Pastou, M. (2009). An efficient and reliable method for measuring cerebral lateralization during speech with functional transcranial Doppler ultrasound. Neuropsychologia, 47, 587-590. Groen, M. A., Whitehouse, A. J., Badcock, N. A., & Bishop, D. V. (2012). Does cerebral lateralisation develop? A study using functional transcranial Doppler ultrasound assessing lateralisation for language production and visuospatial memory. Brain and Behavior doi: doi:10.1016/j.neuropsychologia.2011.07.031