A low-cost stand-alone platform for measuring motor behavior across developmental applications

iScience. 2021 Jun 17;24(7):102742. doi: 10.1016/j.isci.2021.102742. eCollection 2021 Jul 23.


Motion tracking provides unique insights into motor, cognitive, and social development by capturing subtle variations into how movements are planned and controlled. Here, we present a low-cost, wearable movement measurement platform, KiD, specifically designed for tracking the movements of infants and children in a variety of natural settings. KiD consists of a small, lightweight sensor containing a nine-axis inertial measurement unit plus an integrated processor for computing rotations. Measurements of three-dimensional acceleration using KiD compare well with those of current state-of-the-art optical motion capture systems. As a proof of concept, we demonstrate successful classification of different types of sinusoidal right arm movements using KiD.

Keywords: Behavioral neuroscience; Biological sciences; Neuroscience; Techniques in neuroscience.