396034.fig.001
Figure 1: (a) A schematic diagram of a stimulus loop that contains 17 individual stimulus impulses to indicate the repetitive presentations in an experiment. (b) A sweep of stimulus sequence with impulses occurring at to represent a period of stimulus loop in time domain (  ms;  Hz). (c) A portion of the Fourier spectrum of the inverse filter . Note that within the frequency band of interest (  Hz), is all below the threshold .