在慢性疼痛患者中,个性化的大脑解码自发疼痛
Jae-Joong Lee1, Seongwoo Jo2, Sungkun Cho2
1Center for Neuroscience Imaging Research, Institute for Basic Science, Suwon, South Korea.
Nature neuroscience
|February 26, 2026
概括
缺乏慢性疼痛的客观生物标志物. 这项研究开发了使用功能磁共振成像 (fMRI) 的个性化大脑解码模型,以准确追踪个体的自发疼痛波动,显示出患者特定疼痛评估的前景.
科学领域:
- 神经科学是一个神经科学.
- 医疗成像医学成像
- 疼痛研究 疼痛研究
背景情况:
- 自发性疼痛是慢性疼痛疾病的一个关键特征.
- 目前的评估方法缺乏客观的生物标志物.
- 需要可靠的工具来客观地测量疼痛强度.
研究的目的:
- 使用fMRI开发针对自发疼痛的个性化大脑解码模型.
- 评估这些模型的准确性和通用性.
- 探索fMRI作为慢性疼痛客观生物标志物的潜力.
主要方法:
- 收集了6个月的功能磁共振成像 (fMRI) 精确度数据,来自两名慢性疼痛患者.
- 开发了个性化的脑解码模型来预测疼痛强度.
- 经过训练和验证的模型使用不同数量的数据.
- 评估模型在跟踪疼痛波动和区分高与低疼痛状态方面的性能.
主要成果:
- 个性化的fMRI解码模型准确地跟踪了自发疼痛强度波动 (参与者1:r=0.40-0.61;参与者2:r=0.51-0.65).
- 模型有效地区分了高和低疼痛状态 (AUC P1: 0.71-0.87; P2: 0.76-0.93).
- 随着更多的培训数据,模型性能得到了改善;传统的数据量不足.
- 模型高度个性化,并没有对参与者进行概括.
结论:
- fMRI可用于客观地评估自发疼痛.
- 特定于患者的大脑解码模型对于准确的疼痛评估至关重要.
- 这种方法凸显了慢性疼痛管理中个性化医学的需要.
相关概念视频
01:20Pain
1.6K
Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...
1.6K
01:44Nociception
33.5K
Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain.
33.5K