Question

drag each sleep stage label to its eeg wave. when all the labels have been placed, select the check answer button.
nrem-1 nrem-2 nrem-3 rem
wave 1
sleep spindles
place from here
wave 2
place from here
wave 3
place from here
wave 4
place item here

Explanation:

• Wave 1 (Sleep spindles): Sleep spindles are characteristic of NREM - 2 sleep. So Wave 1 should be labeled NREM - 2.
• Wave 2 (Irregular, relatively fast - looking): REM sleep has EEG waves similar to wakefulness (irregular, fast). So Wave 2 should be labeled REM.
• Wave 3 (Very slow, high - amplitude): NREM - 3 (also called deep sleep) has slow, large - amplitude waves. So Wave 3 should be labeled NREM - 3.
• Wave 4 (Transition from wake to sleep, slow - starting): NREM - 1 is the first stage of sleep with relatively slow - starting, transitional waves. So Wave 4 should be labeled NREM - 1.

Answer:

• Wave 1: NREM - 2
• Wave 2: REM
• Wave 3: NREM - 3
• Wave 4: NREM - 1