What is the characteristic frequency range of alpha waves?

The characteristic frequency range of alpha waves is indeed 8 to 12 Hz. Alpha waves are a type of brainwave that typically occur when a person is awake but relaxed and not actively engaged in mental tasks. They are often associated with states of relaxation, calmness, and even creativity, making them significant in various contexts, especially in studies related to meditation and mindfulness.

These waves are most commonly detected in the occipital lobe of the brain when the eyes are closed. Their frequency range distinguishes them from other types of brainwaves, such as delta waves, which are slower (0.5 to 4 Hz), and beta waves, which are faster (13 to 30 Hz). Understanding these frequencies is crucial for interpreting electroencephalogram (EEG) data and can inform approaches in both clinical and research settings.