Figure 3.

Resonant frequencies and synchronous frequencies of five PT models compared with experimental data. A: four of the five models show transfer frequencies along the apical trunk within the experimentally observed range. The fifth produced transfer frequencies above this range. Experimental values of transfer frequencies were extracted from Ulrich (27) and Dembrow et al. (13). B: only two models exhibit synchronous frequencies along the apical trunk which are within the experimental range. The other three models produce synchronous frequencies below this range. Experimental values of synchronous frequencies were extracted from Dembrow et al. (13). PT, pyramidal tract neuron.