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Huge mapping study reveals how your brain tracks what your body is feeling
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Huge mapping study reveals how your brain tracks what your body is feeling

Researchers have mapped the insula, a region buried deep in the brain, in unprecedented detail. Over more than a decade, they stimulated electrodes in 87 people who already had them implanted for medical reasons, and recorded the sensations that followed. Stimulation at the back of the insula caused sensations such as pain, heat and tingling in specific body parts, while its middle region produced feelings such as nausea and pressure in the chest. The front of the insula connects with areas involved in thought and emotion, suggesting that it helps shape how the brain interprets bodily sensations, rather than simply reading signals from the body.
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