71. Sleep staging NREM REM Stage 1 Stage 2 Stage 3 Stage 4 CAP Non-CAP Phase B Phase A
72.
73. Stage W: Awake state Eyes open: slow eye movements when drowsy. Eyes closed: REMs or none. Relatively high tonic activity. Voluntary control. Voluntary control Eyes closed: rhythmic α , occipital dominant; disappears on eye opening. Eyes open: low voltage mixed frequency. EMG EOG EEG
74.
75.
76.
77. Stage 2 Tonic activity low No eye movements, or occasional SEMs. Background: Relatively low voltage, mixed frequency(3-7/sec). Sleep spindles: K complex: Biphasic; maximum at vertex. Delta activity <20% EMG EOG EEG
78.
79.
80.
81.
82.
83. Stage 4 Stage 3 Low level tonic activity. None. Delta activity (2/sec or less), high amplitude(> 75 µV). 20%-50% of epoch. Maximum in central. Sleep spindles may be seen. Low level tonic activity. None. Delta activity with high amplitude(> 75 µV) comprising >50% of epoch. Sleep spindles and K complex occur rarely. EMG EOG EEG
84.
85.
86.
87. Stage REM Tonic: suppression. Phasic: twitches. Phasic: intense REM. Tonic: none or few. Relatively low voltage, mixed frequency saw tooth waves; theta activity; slow alpha. Initial REM period at times contains some low-voltage spindles. EMG EOG EEG
92. Sleep terminology Time spent in sleep/ time in bed (Normal >85%) Sleep efficiency (REM+ NREM)- awake time Total sleep time Light off to sleep onset. Latency of sleep onset 3 consecutive epochs of Stage 1 NREM, or first epoch of any other Stage. Sleep onset Total minutes spent in bed. Time in bed End of recording. Light on Start of recording. Lights out Fixed time domain of 30 sec. Epoch
104. Arousal analysis 26 0 5.4 26 Arousal associated with Snores 1 0 0.2 1 Arousal associated with Hypopnea 0 0 0.0 0 Arousal associated with Central Apneas 0 0 0.0 0 Arousal associated with mixed Apneas 1 0 0.2 1 Arousal associated with OSA 1 0 0.2 1 Arousal associated with resp. Events 10 0 2.1 10 Arousal associated with periodic Movement 0 0 0.0 0 Arousal associated with Desaturations 52 1 10.9 53 Arousals NREM REM Index No
105. Leg movements 0.6 3 3 0 Isolated with arousal 3.9 19 16 3 Isolated (Total) 2.1 10 10 0 Periodic with arousal 28.1 136 124 12 Periodic (Total) Index Total No of Movements NREM REM Movement Types
106. Respiratory events and sleep Stages 12.8 10.8 12.8 Max Duration 12.8 10.8 12.8 Min Duration 11.3 10.8 11.5 Mean Duration 3 1 2 # HYPOPNEA - - - Max Duration - - - Min Duration - - - Mean Duration 0 0 0 # OBSTRUCTIVE - - - Max Duration - - - Min Duration - - - Mean Duration 0 0 0 # MIXED - - - Max Duration - - - Min Duration - - - Mean Duration 0 0 0 # CENTRAL Total REM NREM