Controversial study redraws classical picture of the neuron
https://www.science.org/content/article/controversial-study-redraws-classical-picture-neuron
A new study challenges the classic picture of neurons, revealing that axons—the nerve fibres that transmit signals—might not be smooth tubes as traditionally depicted. Instead, researchers observed a “pearl-like” structure along axons, which could act as control knobs, altering how signals are transmitted. These findings, based on high-pressure freezing techniques, suggest that axons naturally take on this shape, which influences signal speed and precision. While some experts see this as groundbreaking, others remain sceptical, suggesting the pearls could result from cell damage during preparation. Regardless, this study invites a fresh look at how our brains work at a fundamental level. The potential implications are vast. If axon pearling is a normal and functional phenomenon, it could explain how the brain adapts and processes vast amounts of information. However, questions remain: How does the brain control this pearling, and how does it impact our thoughts?