Synaptic Variability Introduces State-Dependent Modulation of Excitatory Spinal Cord Synapses

Figure 5

(a) The relationship between the initial PP ratio and the magnitude of the change in the EPSP amplitude by substance P (/). Neither relationship was significant. (b) Graph showing the relationship between the change in the EPSP amplitude (/) and the magnitude of the reduction in the PP ratio (/). In this case, there was a significant negative correlation at potentiated connections.

(a)

(b)