PDF(Pubmed)
Abstract：
Pain sensitivity varies across multimodal somatosensory stimuli that can rely on different conductive fibres, which, when damaged, will lead to neuropathies. However, there is limited research examining the characteristics of perceived pain, particularly as affected by the ageing process, as induced by various somatosensory stimuli that may rely on small or large fibres.
Using heat and pressure stimuli on small and large fibres separately on both younger and older adults, this study examined age-associated changes in pain perception by measuring self-reported pain sensitivity, pain threshold and pain discriminability.
Heat pain threshold was significantly positively correlated with age, but not pressure pain threshold. Pain threshold increased and pain discriminability decreased in response to heat stimuli in the older participants compared with the younger ones.
An age-associated decline in heat pain perception was observed, suggesting an earlier degradation of heat perception. These findings provide new insight into understanding and assessing somatosensory disorders, which can help ageing populations better maintain healthy sensory functioning.
Using heat and pressure stimuli on small and large fibres separately on both younger and older adults, this study examined age-associated changes in pain perception by measuring self-reported pain sensitivity, pain threshold and pain discriminability.
Heat pain threshold was significantly positively correlated with age, but not pressure pain threshold. Pain threshold increased and pain discriminability decreased in response to heat stimuli in the older participants compared with the younger ones.
An age-associated decline in heat pain perception was observed, suggesting an earlier degradation of heat perception. These findings provide new insight into understanding and assessing somatosensory disorders, which can help ageing populations better maintain healthy sensory functioning.
摘要：
背景：疼痛敏感性在依赖于不同导电纤维的多模态体感刺激中变化，which,损坏时,会导致神经病.然而,研究感知疼痛的特征的研究有限，特别是受老化过程的影响，由可能依赖于小纤维或大纤维的各种体感刺激引起。
方法：对年轻人和老年人分别对小纤维和大纤维使用热和压力刺激，这项研究通过测量自我报告的疼痛敏感性来检查疼痛感知的年龄相关变化，痛阈值和疼痛辨别能力。
结果：热痛阈与年龄呈显著正相关，但不是压力痛阈值。与年轻参与者相比，老年参与者对热刺激的反应疼痛阈值增加，疼痛辨别能力降低。
结论：观察到与年龄相关的热痛感知下降，表明热感知的早期退化。这些发现为理解和评估体感障碍提供了新的见解，这可以帮助老年人更好地保持健康的感官功能。
方法：对年轻人和老年人分别对小纤维和大纤维使用热和压力刺激，这项研究通过测量自我报告的疼痛敏感性来检查疼痛感知的年龄相关变化，痛阈值和疼痛辨别能力。
结果：热痛阈与年龄呈显著正相关，但不是压力痛阈值。与年轻参与者相比，老年参与者对热刺激的反应疼痛阈值增加，疼痛辨别能力降低。
结论：观察到与年龄相关的热痛感知下降，表明热感知的早期退化。这些发现为理解和评估体感障碍提供了新的见解，这可以帮助老年人更好地保持健康的感官功能。
