1. 1) Baliki, M.N., Chialvo, D.R., Geha, P.Y., Levy, R.M., Harden, R.N., Parrish, T.B., Apkarian, A.V., Chronic pain and the emotional brain: specific brain activity associated with spontaneous fluctuations of intensity of chronic back pain, J. Neurosci., 26 (2006) 12165–12173.
2. 2) Dubowitz, D.J., Chen, D.Y., Atkinson, D.J., Scadeng, M., Martinez, A., Andersen, M.B., Andersen, R.A., Bradley, W.G. Jr., Direct comparison of visual cortex activation in human and non–human primates using functional magnetic resonance imaging, J. Neurosci. Methods, 107 (2001) 71–80.
3. 3) Hama, A., Natsume, T., Ogawa, S., Awaga, Y., Hayashi, I., Matsuda, A., Takamatsu, H., Pain–Related Behavior and Brain Activation in a Cynomolgus Macaque Model of Postoperative Pain, CNS Neurol. Disord. Drug Targets, 17 (2018) 348–360.
4. 4) Kaneko, H., Zhang, S., Sekiguchi, M., Nikaido, T., Makita, K., Kurata, J., Konno, S., Dysfunction of Nucleus Accumbens Is Associated With Psychiatric Problems in Patients With Chronic Low Back Pain: A Functional Magnetic Resonance Imaging Study, Spine (Phila Pa 1976), 42 (2017) 844–853.
5. 5) Kobayashi, Y., Kurata, J., Sekiguchi, M., Kokubun, M., Akaishizawa, T., Chiba, Y., Konno, S., Kikuchi, S., Augmented cerebral activation by lumbar mechanical stimulus in chronic low back pain patients: an FMRI study, Spine (Phila Pa 1976), 34 (2009) 2431–2436.