Continuing to look into the mirror

Neuronugget #3

The Default Mode Network (DMN) is a collection of interconnected brain regions that play a crucial role in self-referential processing.

Here are the key points:

1. Function: The DMN is typically suppressed when an individual is focused on external stimuli. However, in the absence of attention to external input, the DMN becomes active. It “defaults” to internally focused thought processes, including self-reflection, daydreaming, mind wandering, recalling personal experiences, and envisioning the future.

2. Brain Regions: The DMN includes areas in the dorsal and ventral medial prefrontal cortices, medial and lateral parietal cortex, and parts of the medial and lateral temporal cortices. These regions work together to facilitate self-related cognitive processes.

3. Cultural Influence: Interestingly, cultural values can impact DMN functional connectivity during self- and other-referential tasks. For instance, individualist values predispose to greater DMN involvement during self-processing, while collectivist values lead to less active DMN engagement in self-processing and greater engagement in other-processing.

In summary, the DMN is not specialised solely for self-processing; it also plays a role in broader cognitive processes related to social cognition. Its involvement in self-versus other-processing is influenced by cultural value systems.

One of the greatest tragedies in life is to lose your own sense of self and accept the version of you that is expected by everyone else.