Discovered a region of the brain responsible for shaping the perception of physical self

A person’s sense of being located inside a body feels simple, yet it depends on many signals working together. The brain tracks posture, movement, touch, and the position of muscles and joints. Researchers have now identified a small area that may help organize these signals into a stable physical self.

The Brain Region Responsible for Shaping the Perception of Physical Self

The region identified in the report is the anterior cingulate cortex. It sits near the middle of the brain, between the two hemispheres. This brain structure is involved in attention, emotion, decision-making, and the control of behavior. The new findings suggest that it also has a central role in how people experience their bodies.

The physical self is not only an image seen in a mirror. It includes a sense of where the body is in space, how it moves, and whether sensations belong to the self. Signals from muscles and joints provide information about posture and motion. Other brain regions process touch, balance, vision, and sound. Together, these signals help the brain build a working model of the body.

Scientists describe this process as a network rather than the work of one isolated brain area. Still, the anterior cingulate cortex may act as an important hub. It can help combine body signals with attention, memories, emotions, and thoughts. This may allow the brain to maintain a steady sense of self while the body moves through a changing world.

How Researchers Mapped the Body-Self Network

The research used several lines of study. First, scientists examined brain data from nearly 1,000 people. They traced connections between regions to learn how signals related to body position, movement, and internal sensation travel through the brain.

This approach is different from looking at activity in one scan. A magnetic resonance scan can show anatomy or changes in blood flow, but mapping connections can reveal how brain regions communicate. The large group also helped researchers compare patterns across individuals instead of relying on a single brain.

The team then studied volunteers who were preparing for surgery to treat drug-resistant epilepsy. In these cases, doctors may place thin electrodes or needles in the brain to identify the source of seizures. This method can record activity with far more precision than a standard scan.

In one patient, seizures began in the anterior cingulate cortex. During the events, the patient reported depersonalization. This term describes a disturbing feeling of being detached from one’s body or of observing oneself from a distance. The experience offered a rare clinical clue: abnormal activity in this part of the cortex appeared alongside a change in the sense of self.

“The body is not simply sensed; it is actively constructed by the brain from many streams of information.” — Summary of the research concept

How the Cortex Supports Self-Awareness

The anterior cingulate cortex is not a single “self center.” Its role is better understood as part of a wider system. The brain must decide which signals matter, connect them with past memories, and guide a response. For example, a sudden change in balance may draw attention before a person consciously names the feeling.

The region also has links with areas involved in emotion and motivation. This may explain how body sensations gain meaning. A racing heart can feel exciting during exercise, but frightening during a panic attack. The physical signal may be similar, while the surrounding thoughts and events change the experience.

Past studies have linked the prefrontal cortex, insula, parietal cortex, and cingulate regions with body awareness and consciousness. These areas do not perform identical tasks. Some track internal states, while others process touch, position, or visual information. Their cooperation helps create the feeling that the body belongs to one continuous self.

Medical Significance and Open Questions

The discovery may help scientists understand conditions in which body representation changes. Depersonalization can occur with severe stress, anxiety, trauma, fatigue, or some neurological disorders. Similar disruptions in body awareness may appear in epilepsy, stroke, and other conditions affecting brain networks.

These findings could improve the way doctors study altered consciousness. If activity in a specific brain structure contributes to a patient’s symptoms, clinicians may be able to monitor it more closely. Future research might also examine whether treatments can restore more stable communication among the relevant regions.

However, the result should not be read as proof that the anterior cingulate cortex alone creates the self. The seizure finding came from one patient, and unusual seizure activity is not the same as ordinary brain activity. Larger clinical studies are needed. Researchers must also compare people across age groups, health conditions, and cultural settings.

The work adds an important point to neuroscience: the sense of self is both personal and biological. Every day, the brain updates its model of the body as people walk, remember, feel, and respond to the world. The anterior cingulate cortex appears to be one key part of that process, linking physical signals with the conscious experience of being someone in a body.