Final answer:
Delta EEG band signals have low frequency and high amplitude and are predominant during stage 3 NREM sleep, indicating deep sleep and regeneration.
Step-by-step explanation:
The properties of the delta EEG band signal are characterized by a low frequency and high amplitude. These wave patterns are indicative of stage 3 non-REM (NREM) sleep, which is also referred to as slow-wave sleep. The delta waves typically have a frequency that is less than 4 Hertz (Hz) and represent the deepest stages of sleep. As compared to other brain wave patterns like alpha and beta waves, delta waves signify a state of deep rest and regeneration for the brain. Typically, these waves indicate that an individual will be less responsive to outside stimuli and may have a harder time awakening. Delta waves are also associated with the release of growth hormone, which is essential for repairing and growth.