Bandpass Filters and Thresholds The bandpass filters simply define the frequency to be passed and do not say anything about the protocol. The threshold objects HAVE to have a definition of whether the signal is to be rewarded or inhibited.  If you go to the Objects menu and choose any of the Thresholds on the list, you’ll open the Properties window for that threshold.  On that window, in the Threshold Tab, the bottom of the three check boxes is “Increase.”  […]