Figure 2.

Simultaneous recordings of up to 7 STN neurons show no mutual synaptic connectivity. A, Reconstruction of simultaneously recorded STN neurons (different cluster than in Fig. 1). B, Connectivity screening of the set of cells in A. Neurons are stimulated consecutively to generate a burst of four APs (gray boxes). Recordings of the other, potentially postsynaptic, neurons are shown in the respective column as averages of 40 sweeps. Note the complete lack of AP-evoked unitary postsynaptic potentials. C, Distributions of distances between tested pairs of neurons in horizontal and parasagittal slices.