Dynamic Conversion Patterns of Head-Neck Contraction-Sensation and Exploration of Personal Will-Based Regulation Methods

This paper proposes an exploratory hypothesis: head-neck posture can be actively regulated by personal will, with its core mechanism lying in the dynamic conversion of the "contraction-sensation vs. stretch-sensation" in the head-neck region. Based on long-term self-observation, the researcher constructed a theoretical framework containing three core concepts: The "Two-Point Three-Line System" describes the geometrical relationship of the head-neck, proposing that resistance during flexion exhibits a "Mountain-Shaped Boundary" change (resistance rises like a mountain peak before suddenly dropping); "Excitability-Variable State and Locked State" distinguish between the post-boundary (where contraction-sensation vs. stretch-sensation fluctuates with stimulation) and the pre-boundary (where contraction-sensation vs. stretch-sensation is stably locked); The "Re-locking Process," through a specific physiological procedure, can solidify the current tension value and state interval, achieving long-term resetting of the "set-point" and "set-state" (pre-boundary/post-boundary).This hypothesis aims to transcend the existing "proprioceptive after-effect" theory (which only explains short-term perceptual shifts) and provide new insights for the active, long-term regulation of head-neck posture. However, it has not yet been verified through large-scale experiments and is currently based solely on the researcher's own repeated observations.