French A S
Biophys J. 1984 Aug;46(2):285-9. doi: 10.1016/S0006-3495(84)84023-0.
A variety of sensory receptors show adaptation to dynamic stimuli that can be well characterized as fractional differentiation of the input signal. The cause of this behavior is unknown, but because it can be represented by linear systems theory, it has been assumed to arise during early linear processes of transduction or adaptation, rather than during the nonlinear process of action potential encoding. I measured the action potential encoding properties of an insect mechanoreceptor by direct electrical stimulation of the sensory cell axon and found a dynamic response that is identical to the response given by mechanical stimulation. This indicates that the fractional differentiation is a property of the encoder rather than the transducer.
多种感觉感受器对动态刺激表现出适应性，这种适应性可以很好地被描述为输入信号的分数阶微分。这种行为的原因尚不清楚，但由于它可以用线性系统理论来表示，所以人们认为它是在转导或适应的早期线性过程中产生的，而不是在动作电位编码的非线性过程中产生的。我通过直接电刺激感觉细胞轴突测量了昆虫机械感受器的动作电位编码特性，发现其动态反应与机械刺激产生的反应相同。这表明分数阶微分是编码器而非换能器的特性。
