Animal head tracking device
For tracking animal head position and movement
Recent advances in machine learning demonstrated that mouse behavior appears to be composed of stereotyped, sub-second modules. Mouse body language is built from identifiable components and is organized in a predictable fashion (Wiltschko 2015). While high-resolution imaging is sufficient to reveal motifs of full-body motion, it may miss the tiny movements of the mouse head, which plays a crucial role in navigation and social interaction. To track head movements we have developed a "head IMU" system to monitor linear and angular accelerations. In combination with the Kalman filter, it allows reconstructing mouse head movement with great precision.