The response to professor K.S. Tűrker on his "an opinion on the 'delayed spikes' in human motoneurons"

This is the response to Prof. Tűrker on his note "challenging" our hypothesis assuming the possibility of two modes of spiking (direct and delayed) evoked by Ia-afferent electrical stimulation in human firing motoneurones. Besides, we touch on some common questions about the most relevant, functionally significant, estimations of motoneuronal firing behaviour in human motor control. In particular, in this context, the question arises: what is more important estimation, motoneurone spiking, itself, or a value of the corresponding interspike interval of the firing motoneurone?