State-Space Algorithms for Estimating Spike Rate Functions

Figure 6

Trial-by-trial comparison between firing rates shown in Figure 4(c). Each pixel represents the value of the probability that the firing rate at time 𝑖 (𝑥-axis) is greater than the firing rate at time 𝑗 (𝑦-axis). The probability values are represented using the grayscale shown. Pixels with values greater that 0.99 are shown in red and pixels with values less than 0.01 are shown in blue. Therefore from approximately 650 milliseconds onwards the firing rate is significantly greater than previous firing rates (red region). The firing rate around 1250 milliseconds is lower than firing rates centered at 1000 milliseconds (blue region). For a small period around 1500 milliseconds the firgin rate is greater than the firing rate around 1250 milliseconds.