Which frequency range is categorized as Theta waves?

Theta waves are defined as brain wave patterns that fall within the frequency range of 4 to 8 Hz. They are typically associated with states of relaxation, creativity, and light sleep. Theta waves play an important role in various cognitive functions, including memory retrieval and emotional processing.

In the context of electroencephalography (EEG), different brain wave patterns are categorized based on their frequency ranges, reflecting various states of consciousness and mental activity. Understanding these ranges is crucial for interpreting EEG data in both clinical and intraoperative settings.

The other frequency categories you may encounter in EEG include delta waves (0.5-4 Hz), which are associated with deep sleep; alpha waves (8-13 Hz), which typically occur during calm wakefulness; and beta waves (13-30 Hz), associated with active, alert thinking and problem-solving.

By recognizing that theta waves specifically occupy the 4-8 Hz range, one gains a better understanding of brain activity related to different mental states and processes.