As much as areas of the brain determine function and mood, so do networks.
According to Amen Clinic:
Your brain consists of multiple networks that work together to process information and guide our behavior. Some examples of the most important networks include:
Default mode network (DMN)—This group of brain systems becomes more active when you’re at rest, such as while you’re sleeping, daydreaming, contemplating the future, or letting your thoughts wander. Activity in the DMN declines when you’re engaged in mental tasks that require focused attention or when you’re actively paying attention to external stimuli.
Central executive network (CEN)—This network of brain regions works collaboratively to control cognitive tasks and engage in goal-oriented actions. Brain regions involved include the frontal lobe and the parietal lobe, which is why this system is sometimes called the frontoparietal network.
Dorsal attention network (DAN)—This group of brain regions is involved in voluntarily focusing your attention. Rather than reacting to external stimuli, this crucial network allows you to intentionally shift your attention.
Reward network—This brain system is involved in desire, motivation, and pleasure. It activates in response to rewarding stimuli, including food and addictive substances.
Salience network—Think of this network as the brain’s moderator. It detects and filters salient stimuli, helping you identify what deserves your attention and shift between external stimuli and internal thinking.
For example, in depression, the default mode network can be overactive at rest or self-reflecting, leading to rumination and negative thoughts.
In addition, the salience network, which helps identify important information, may be underactive. Research shows can lead to focusing on negative experiences.
More: https://buff.ly/3XOhhiC
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