Pain reflex is one of the most basic conditioned reflexes of the human body.
Even if a person is in a deep coma, they will still respond more or less to pain stimulus.
Unless the brain is severely inhibited or damaged, or the neural transmission pathways, such as the spine, are blocked due to accidents or anesthetics.
After undergoing brain surgery, patients are subjected to a detailed examination of various body parts upon waking, to detect any potential post-operative brain injury.
What Lin Jie needs to do now is to use deep pain stimulation to elicit a physical response from the comatose little boy.
From there, he can inversely infer the potentially injured areas in the boy's brain based on the presence or absence and strength of his physical responses.
Although this method carries some uncertainties, it is the most practical solution Lin Jie can think of given the current conditions.
