Full context:   The astronomical Zodiacs all have the same skeleton: a differentiation based on four distinct phases (equivalent to the seasons in the annual solar cycle) and on three quantitative modalities (with a maximal variation for the solsticial signs and a miminal one for the equinoctal signs). The reflexological Zodiac, from the mind of the astrologer Nicola and based on the work of Pavlov,   gives testimony to the temporal integration and structural crystallization by the nervous system of differences in declination and of relations of duration among the diurnal and nocturnal arcs in external, astronomical Zodiacs.