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Understand PSG Annotation

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balandong +0 points · over 5 years ago

Dear all, Im trying to digest the information behind the xml file. For the sake of discussion, let us considert the annotation from subject shhs1-200001-nsrr

a) For scoreEvent no 2 (SPo2 artifact), was this event start 304s after the recording start time, and continue for 3 second? b) Similarly, for scoreEvent no 3 (Arousal), was this event start 964.8s after the recording start time OR after the ScoreEvent no 2, and continue for 25.4 s?

Thanks in advance for the confirmation

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mrueschman +0 points · over 5 years ago

Thanks for the question. All of the "Start" times are in "seconds from recording start time". You are correct about the Durations, i.e. the SpO2 artifact (#2) lasted 3 seconds and the Arousal (#3) lasted 25.4 seconds.

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