Fig. 4.
A1, Firing trains of spikes in CC5 excite a neuron with an axon in the ipsilateral PAn but have no effect on the neuron in the contralateral PAn. A2, When the ipsilateral PAS neuron was hyperpolarized, CC5 failed to evoke spikes in the cell, and the extracellularly recorded spike of PAS was eliminated (n = 6). B, Simultaneous extracellular recordings from the LPAn and RPAn and intracellular recordings from the left and right CC5 neurons show the strictly unilateral actions of CC5 on the PAS (n = 10).