Fig. 12.

Regression lines calculated with and without uncertainty in the mean are similar. The x - and y-axes show, on a logarithmic scale, the means and variances of spike counts elicited from a single neuron by different stimuli. The regression lines calculated using standard regression methods (solid) and methods taking into account uncertainty in estimates of both variables (dashed) are shown. Ignoring the uncertainty in estimates of the sample mean biases the slope toward 0, but the effect is small. The cell shown has the median change in slope among V1 neurons.