Whisker deprivation does not alter the I–V relationship of EPSC-AMPAR. A, EPSC-AMPAR recorded at various holding potentials from deprived (left), spared (middle), and normal (right) neuron recorded in the presence of d-APV (50 μm). For A (left and middle), the holding potentials, from the top to bottom, were +34, +24, +9, −6, −21, −36, −46, and −76 mV; for A (right), the holding potentials were +34, +24, +4, −16, −36, −56, and −76 mV. B, I–V plots for deprived (black square, n = 7 cells), spared (red triangle, n = 7), and normal (green filled circle, n = 6) groups. For each cell, the peak amplitude was normalized to that recorded at −76 mV. The liquid junction potential, estimated to be +6 mV, was corrected for all cells.