Short Communication - A Comparative Physiological and Technical Evaluation of Skull Micro-Movement Detection Using Dual Mechanical Actuators and Flat Eddy-Current Sensor Systems: Toward a Standardized Framework for Cranial Micro-Oscillation Measurement in

Abstract

This short communication presents the first comparative analysis of two foundational skull micro-movement detection systems: dual mechanical actuators and flat eddy-current sensors. By synthesizing their technical performance, physiological findings, and limitations, the paper highlights how both systems consistently identify low-frequency cranial oscillations while offering complementary strengths in precision and artefact reduction. The communication proposes an integrated methodological framework that combines high-resolution displacement tracking with effective respiratory subtraction, offering a novel and standardized approach for future research on cranial micro-movements.