Figure 3.

Prediction of vector strength for higher modulation frequencies through gain measured using step responses at baseline firing rates of 8 spikes/s. Analysis was done on the same dataset shown in Figure 2. A, Gain for different step lengths associated with modulation frequencies of 0.1, 0.5, 1, 4, and 10 Hz. Step length was one-half the period of the respective frequency (5000, 1000, 500, 125, and 50 ms, respectively). B, Comparison of measured and predicted vector strength for different modulation frequencies under low conductance. Predictions are shown as triangles and were derived using Equation 4 and the frequency-specific gain shown in A. Measured vector strengths are shown as squares. C, Comparison of measured and predicted vector strength for different modulation frequencies under high conductance. Predictions are shown as triangles and were derived using Equation 4 and the frequency-specific gain shown in A. Measured vector strengths are shown as squares.