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The default mode network has also been called the language network, semantic system, or limbic network. [11] Even though the dichotomy is misleading, [ 8 ] the term task-negative network is still sometimes used to contrast it against other more externally-oriented brain networks.
The default mode network (DMN) is a network of brain regions that are active when an individual is awake and at rest. [25] The default mode network is an interconnected and anatomically defined brain system that preferentially activates when individuals focus on internal tasks such as daydreaming, envisioning the future, retrieving memories ...
The default mode network (and the PCC) is highly reactive and quickly deactivates during tasks with externally directed, or presently centered, attention (such as working memory or meditation). [ 4 ] [ 8 ] Conversely, the DMN is active when attention is internally directed (during episodic memory retrieval, planning, and daydreaming).
Recent studies have used fMRI to explore specific brain networks, such as the salience network and default mode network, to understand their roles in schizophrenia-related symptoms. Alterations in these networks may affect self-referential thoughts and responses to external stimuli, potentially contributing to symptoms like hallucinations and ...
[10] [11] In one model, there is only the default mode network and the task-positive network, but most current analyses show several networks, from a small handful to 17. [10] The most common and stable networks are enumerated below. The regions participating in a functional network may be dynamically reconfigured. [5] [12]
There is also decreased connectivity within the Salience Network in the brains of people who suffer from PTSD. The Default Mode Network, on the other hand, shows higher connectivity. In a healthy brain, the Salience Network modulates between the activation of the Central Executive Network and the Default Mode Network.
The salience network is theorised to mediate switching between the default mode network and frontoparietal network (central executive network). [1] [2] [3]The frontoparietal network (FPN), generally also known as the central executive network (CEN) or, more specifically, the lateral frontoparietal network (L-FPN) (see Nomenclature), is a large-scale brain network primarily composed of the ...
The default mode network (DMN) is thought to process and represent abstract social information, such as mental states, traits, and intentions. [3] [32] [33] Social cognitive functions such as theory of mind, mentalizing, emotion recognition, empathy, moral cognition, and social working memory consistently recruit DMN regions in human ...