Most people only experience theta states when they are completely unconscious (e.g. The majority of the adult population experiences very little theta activity while awake. They are associated with deep states of relaxation and sleep. They are involved in subconscious processing, experiencing emotions, and are tied to supernatural, paranormal, and other spiritual experiences. Most researchers associate theta brain waves with the inability to consciously focus. Healthy theta activity may enhance our ability to process emotions, be creative, and tap our intuition. Additionally, theta waves in certain regions of the brain are linked to learning disorders. Individuals that go into deep meditative states may also experience an increase in theta brain waves.

In comparison, children tend to have significantly more theta activity than adults. There are specific studies regarding the theta rhythm in the hippocampal region – that is something different. It is important to note that this article is referring to cortical theta rhythms – that can be observed anywhere in the brain. Since experiencing theta brain waves is linked to lower levels of arousal, it is hypothesized that theta wave dominance, particularly in the left hemisphere may contribute to feelings of depression. Theta waves have been linked to experiencing emotions, daydreaming, intuition, relaxation, the subconscious mind, and REM sleep (accompanied by bursts of gamma waves). This brain wave rhythm may be dominant among children, individuals with ADHD, or overpowering when individuals are unable to focus on a particular task. Theta brain waves are considered brain waves that oscillate between the frequencies of 4 Hz to 8 Hz (cycles per second).

Hyperfocus depression