1. Analysis of Behavioral Phenomenon
Sometimes, when a crying baby is being comforted by its mother, instead of calming down, the baby suddenly makes extremely violent movements: the entire body arches backward, arches the back (Arching back), and even uses both hands to push forcefully against the mother's chest. This almost defiant body language often makes the mother feel deeply frustrated, believing that "the baby is rejecting me and repelling my love."
2. Core Variables Behind the Behavior:
The "Sensory Overload" of the Autonomic Nervous System and Spatial Boundary Defense
Without considering physiological discomfort such as gastroesophageal reflux during infancy, this intense arching back and pushing behavior is a signal that the baby's brain's protection mechanism has been activated:
• Passive Activation of the Sensory Defensiveness Mechanism: The baby's nervous system is extremely fragile. When the surrounding environment is noisy, the light is too bright, or adults continuously shake and talk to try to comfort the baby, various sensory signals get stuck in the baby's brain, causing it to enter "Sensory Overload."
• Creating a "Physical Boundary" through Mechanical Stretching: At this time, the baby cannot speak. When their brain is bombarded with overload signals to the point of collapse, their bodies instinctively enter the "fight or flight" defense state. They arch backward and push away the mother, actually using all their strength to create a physical distance from the stimulus source (including the mother's face and voice), forcibly creating a "microscopic independent space" for themselves within the confined embrace to breathe.
3. Deep Cognitive Reconstruction
Reconstruction from the Mother's Perspective: The arching back and pushing of the baby are not "refusing your love," but rather he is crying out in pain: "Please let me be quiet for a while, I can't hold on much longer!" At this time, the mother holding him tighter, increasing the frequency of shaking and talking, will only exacerbate his pain. The correct approach is to respond to his counterforce, relax the embrace, and even gently place him on a safe and quiet bed. Cut off all sound and bright light stimulation, remain silent, and simply place a gentle hand on his abdomen or chest to provide stillness and companionship, allowing him to gradually calm down the hyperactive autonomic nervous system through the expansion of space.
