What is the general amplitude range for delta waves?

Delta waves, which are typically associated with deep sleep stages (particularly during Non-Rapid Eye Movement sleep), usually present with an amplitude range of 10 - 20 µV. These brain waves are the slowest in frequency but have a higher amplitude compared to other types of brain waves, such as alpha or beta waves.

Understanding the amplitude range is crucial for interpreting sleep patterns accurately, as delta waves indicate restorative sleep that is important for health and well-being. Recognizing this range helps clinicians identify abnormalities in sleep structure or disorders, such as insomnia or sleep apnea, where delta wave activity may be altered.

Other amplitude ranges mentioned do not align with the standard characteristics of delta waves. For example, 20-30 µV may imply slightly heightened activity but does not reflect the typical range, while 1-5 µV and 5-7 µV are significantly lower and more indicative of other brain wave patterns. Hence, knowing the correct amplitude range assists in effectively diagnosing and treating sleep disorders.