Educational psychology . ehuchten [oo, vol. 2, p. 250]. Fig. II. The olfactory receptors, or first sensory olfactory neurones (ol.), theirdischarging ends (dis.), in synapse (sy.) with the receiving ends (r.) of sevenof the second sensory olfactory neurones. The axones of the latter (ax.)continue far beyond the limits of the drawing. After Van Gehuchten [00,voJ. 2, p. 287J. switchboard or set of relay stations permitting a very greatvariety of combinations, recdirections, shuntings and retard-ations of the conducted currents. Second, in particular, thereare arrangements whereby several neurone
Educational psychology . ehuchten [oo, vol. 2, p. 250]. Fig. II. The olfactory receptors, or first sensory olfactory neurones (ol.), theirdischarging ends (dis.), in synapse (sy.) with the receiving ends (r.) of sevenof the second sensory olfactory neurones. The axones of the latter (ax.)continue far beyond the limits of the drawing. After Van Gehuchten [00,voJ. 2, p. 287J. switchboard or set of relay stations permitting a very greatvariety of combinations, recdirections, shuntings and retard-ations of the conducted currents. Second, in particular, thereare arrangements whereby several neurones may dischargeinto one neurone as shown schematically in Figure i6, and ina real case in Fig. 17, so that there can be a convergence ofstimuli separately initiated toward a common final path. Third,there are arrangements whereby one neurone may dischargeinto several neurones as shown schematically in Figure 18, andin a real case in Fig. 19, so that there may be a distribution or THE PHYSIOLOGY OF ORIGINAL TENDENCIES 21/. Fig. 12. A typical synapse in the cerebellar cortex. The discharging end-branchof a neurone intertwined with and applied closely to the surface of thereceiving end of a Purkinje neurone. The former is shown in full black;the latter in stipple. The full detail of the latter is not shown. After Johnston[06, p. 241]. diffusion or varied transmission of one initial stimulus to manyfinal paths. Fourth, the connecting-, or associative, or switchboard,neurones form, especially in man, an apparatus for redirectionof stimuli which is almost infinitely complex and which isextraordinarily apt for varied transmission, so that the samestimulus may, according- to minor cooperating conditions, beconducted to many different final paths, and so that many dif-ferent stimuli may, according to some common feature, beconducted to the same final path. The varieties of connectionswhich appear in the case of the instincts of multiform mentaland physical activity, curiosity, manipulat
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