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The duration of activity (duty) on the waveform selected by the "Amplitude W.F. #" is displayed with respect to the duration of cycles on the waveform selected by the "Cycle W.F. #". A point is plotted for each activity burst on the former waveform, which falls into one of the cycles of the latter waveform in the selected range to be analysed. If the option "Base cycle stats. on start" is enabled, the start of activity, rather than the end of activity, is used for the purpose of determining in which cycle a particular burst of activity falls, and where it falls within the cycle.
The "Burst cycle offset" is used to effectively time-shift the cycles for the purpose of determining in which cycle a particular burst of activity falls, much like the cycle offset parameters for the "W.F. activity start & stop time analysis" graph. The "Burst duration type" parameter determines the way in which the burst duration is calculated for each burst of activity. The initial value, 0, means the duration is the time from the start of the burst to the end of it. A 1 means the time from the start of the burst to the start of the next burst. A 2 means the time from the end of the burst to the start of the next, and a 3 means the time from the end of the burst to the end of the next. If the "Relative burst durations" option is set, burst durations are shown as a percentage of the corresponding cycle durations.
If the "Burst positions in cycle" option is enabled, the usual X-axis is overridden by the cycle positions of the activity bursts. In other words, the graph becomes one of burst duration versus position of burst in cycle. Just like any of the other graphs of "something" vs cycle, this graph can be normalized, and the "Cycles on graph" parameter will then take effect.
If the "Flip durations" option is enabled, the usual X and Y axes are transposed, giving you a graph of cycle duration versus burst duration. If the "Flip durations" option and the "Burst positions in cycle" option are both enabled, the graph becomes one of cycle duration versus position of burst in cycle.
When the "Second W.F. bursts" option is enabled, the end of burst durations or train durations are taken from the cycle activity recorded in the waveform parameters of a second waveform, selected by the "Second ampl. W.F. #". Either the start or end of the burst is used, depending on the "Burst duration type" selected. If the "Second W.F. trains" option is also selected, it overrides this one, so the trains are used instead of the cycle activity for the second waveform.
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Copyright © 2019 G. R. Detillieux, Spinal Cord Research Centre, The University of Manitoba.