Sleep Heart Health Study

Appendix A - List of Illustrations

Please Note:

Illustrations are taken from both SHHS1 and SHHS2 and due to improvements by Compumedics screen format may slightly differ between generations.

Staging screens reflect 30 sec/page timebase, unless otherwise stated. Respiratory screens reflect 5 minute/page timebase, unless otherwise stated.

Figures (Examples of Signals)

Arousal Examples

• ArFigures 1a and 1b - Sample Arousals
• ArFigures 2a, 2b, 2c, 2d, 2e - Sample Artifacts, K complexes, spindles, EEG shifts
• ArFigures 3a and 3b - Increase in EEG frequency from EMG artifact
• ArFigures 4a, 4b, and 4c - Burst of delta activity or sawtooth-like waves - not arousals
• ArFigures 5a and 5b - EEG acceleration superimposed on slower waves
• ArFigures 6a, 6b and 6c - Arousals in REM, EMG activity

Episodic Event Examples

• EpFigures 1a and 1b - Sleep spindle activity
• EpFigures 2a and 2b - Medication effects on spindles
• EpFigures 3a, 3b, 3c, and 3d - Examples of K complexes
• EpFigures 4a, 4b, 4c, and 4d - Hypersynchrony
• EpFigures 5a, 5b, 5c, 5d, and 5e - Seizure discharges

Sleep Stages

• SsFigures 1a and 1b - Wake; alpha with eyes open
• SsFigures 1c and 1d - Wake; alpha with eyes closed
• SsFigures 2a, 2b, 2c and 2d - Stage 1 sleep; theta, beta.
• SsFigures 3a, 3b, and 3c - Stage 2 sleep; sleep spindles, K-complex
• SsFigures 4a K-complexes imbedded within an arousal
• SsFigures 5a, 5b, 5c, and 5d - Deep Sleep (Stage 3 and 4); high-voltage slow waves
• SsFigures 6a, 6b, 6c, 6d, and 6e - Rem sleep examples
• SsFigures 7a, 7b, 7c, 7d, 7e, and 7f - Delta waves in REM; REM density; beta activity and isolated Ks in REM
• SsFigures 6a and 8a - Wake-REM transition
• SsFigures 9a, 9b, 9c, 9d, 9e, 9f, 9g, 9h, 9i, 9j, and 9k - Interruption of Stage REM; end of stage REM
• SsFigures 10a, 10b, 10c, and 10d, 11a, 11b, 11c, and 11d - Spontaneous end of Stage REM
• SSFigure 12a, 12b, and 12c - Scoring REM when EMG is difficult to interpret

Respiratory Events

• ResFigures 1a - Normal breathing
• ResFigures 1b - Periodic breathing
• ResFigures 1c and 1d - Periodic large breaths
• ResFigures 2a, 2b, 2c, and 2d - Obstructive Apneas
• ResFigures 3a, 3b, and 3c - Hypopnea
• ResFigures 4a, 4b, and 4c - Distinguishing between Hypopneas & Apneas
• ResFigures 4d, 4e, and 4f - Variation in signal amplitude on airflow, thoracic, abdominal
• ResFigures 5a, 5b, and 5c - Central Apneas
• ResFigures 6a, 6b, and 6c - Distinguishing between Central and Obstructive Apneas
• ResFigures 6d - Paradoxical breathing
• ResFigures 6e, 6f, and 6g - When to start/stop events
• ResFigures 6h, 6i, and 6j - Trough-to- trough marking of respiratory events
• ResFigures 7a and 7b - Respiratory events in a series
• ResFigures 7c, 7d, and 7e - Marking respiratory events after large breaths
• ResFigures 7f, 7g, 7h, 7i, and 7j - Marking one long event vs. two short events
• ResFigures 7k and 7l - Periods of hyperventilation followed by hypoventilation
• ResFigures 7m, 7n, 7o, and 7p - Scoring respiratory events in series, ambiguous amplitude changes

QS Form

Unusual occurrences during Sleep

• QSFigures 1a and 1b - Abnormal wake EEG
• QSFigures 2a, 2b, and 2c - Physiologic alpha intrusion
• QSFigures 2d - Alpha-like artifact
• QSFigures 3a, 3b, 3c, 3d, 3e and 3f - Abnormal eye movements
• QSFigures 4a, 4b, 4c, and 4d - Periodic breathing in sleep
• QSFigures 5a, 5b, and 5c - Periodic large breaths