Population Responses of Aδ-Fiber Nociceptors with Hypothetical Spatial Distributions on Human Forearm
This paper studied the effect of innervation patterns of cutaneous mechanosensitive A8-nociceptors with myelinated axons on the evoked neural responses while the skin was mechanically stimulated using quantitative indentation (compression). By reconstructing the neural response of nociceptors under a punctate stimulus, the peak firing rate and the number of recruited nociceptors are calculated for different innervation patterns. And then, these two measures are used to discuss the effect of external stimulus features on the neuronal activity. The results demonstrate that there are large differences between the active level of cutaneous AS nociceptors with Gaussian and other distribution patterns (i.e. rectangular and uniform). When the innervation density distribution is Gaussian, the stimulus intensity and contactor size can be well encoded by the proposed two measures.
Nociceptors Innervation Distribution Sensitivity Forearm
Jiyong Hu Yi Li Xin Ding Rubin Wang
Key Lab of Textile Science and Technology, Ministry of Education, Donghua University, Shanghai 201620, P.R.China
国际会议
The Second International Conference on Cognitive Neurodynamics--2009(第二届国际认知神经动力学会议)
杭州
英文
447-452
2009-11-15（万方平台首次上网日期，不代表论文的发表时间）