That is, personality changes are attributed to the brain alone, with no involvement from the central or enteric nervous systems. Any personality changes due to spinal or abdominal trauma would need to posit a totally new biological mechanism.
Every line of inquiry so far has failed to suggest that any important aspects of personality are located anywhere except the brain.
You should check out sympathectomies, that cut or clamp nerves from the sympathetic nervous system in the torso. Here is a detailed post from the EA Forum, from a sympathectomy patient, who describes significant changes in personality, perception, cognitive ability, and significant changes to the nature of his conscious experiences, after having peripheral nerves severed.
Another source is Endoscopic Thoracic Sympathectomy. From Wikipedia: “A large study of psychiatric patients treated with this surgery showed significant reductions in fear, alertness and arousal. Arousal is essential to consciousness, in regulating attention and information processing, memory and emotion.”
You should check out sympathectomies, that cut or clamp nerves from the sympathetic nervous system in the torso. Here is a detailed post from the EA Forum, from a sympathectomy patient, who describes significant changes in personality, perception, cognitive ability, and significant changes to the nature of his conscious experiences, after having peripheral nerves severed.
Another source is Endoscopic Thoracic Sympathectomy. From Wikipedia: “A large study of psychiatric patients treated with this surgery showed significant reductions in fear, alertness and arousal. Arousal is essential to consciousness, in regulating attention and information processing, memory and emotion.”