Self-Awareness

Default Mode Network and Disconnected Self-Awareness: When Self-Reflection Happens Without Somatic Input The default mode network is the brain’s self-construction circuit — anchored in medial prefrontal cortex and posterior cingulate. It builds the narrative self from autobiographical memory. When its coupling with the body’s interoceptive signal weakens, you can know exactly who you are in autobiography while losing access to how you are right now. ...

Heartbeat Evoked Potentials: What Your Brain’s Response to Your Own Heart Reveals About Emotional Awareness The heartbeat evoked potential is an EEG signal time-locked to the R-peak of each heartbeat that reveals how attentively your brain is processing the body it lives inside. A larger HEP means the cortex is registering each heartbeat as a meaningful signal. An attenuated HEP means the brain has deprioritized internal body input — the measurable neural signature of being cognitively present while somatically absent. ...

Insular Cortex and Interoception: The Brain Region That Bridges Body Signals to Emotional Intelligence The insular cortex is the brain’s mapping organ for the body — the cortical region that converts visceral signals into conscious feeling. The posterior insula receives raw afferent input from heart, lungs, viscera, and pain pathways. The anterior insula re-represents that input with cognitive and emotional context, producing the felt experience the brain reads as emotion. Interoception is that re-representation. ...