Cardiovascular Consequences of Repetitive Arousals over the Entire Sleep Duration

Figure 1

The modulation of stimuli based on the consequence of the previous stimulus. Arousal and wakefulness were defined in accordance with the AASM scoring rule. stimuli were presented roughly every 45 seconds in order to achieve the expected arousal index, because not every stimulus would evoke arousal successfully. set of stimulus presented before the current one was considered to be the softer one. strategy to advance stimuli is illustrated in detail in the text.