Supplementary Figure: picrotoxin applications. Plots similar to Figure \ref{488013}, except that experiments are now grouped based on the type of test that was run. A: Testing inhibitory connections. B: Trying to uncover excitatory effects that might have been masked by global inhibition. Picrotoxin applications usually produce an increase in the baseline activity of the neuron, and hence an increase in the inhibition driving force, which partially balances the transmission block.