Figure 9.
The correlation in population reversal potential between up and down states suggests that the fraction of GABAergic inputs is stable in both states for each neuron. A, Up-state charge for spiny projection neurons (SP) and fast spiking interneurons (FS) reverses between -60 and 0 mV. Numbers indicate the number of neurons tested for each holding potential. B, Reversal potential for up-state charge correlates highly with reversal potential of charge for unitary down-state PSCs (R2 = 0.90).