A new technique has been developed to control brain activity without the need for invasive surgery or genetic changes. This method uses special nanoparticles to stimulate neurons deep within the brain using near-infrared light. This is a big deal because it allows scientists to study how the brain works in a more precise and less harmful way.

The nanoparticles used in this technique are called HUP nanoparticles. They can convert near-infrared light, which can penetrate deep into the brain, into electrical signals that activate neurons. This means that scientists can now stimulate specific brain regions without having to insert electrodes or modify the brain's genes. This is a significant improvement over previous methods, which often required invasive procedures or genetic modifications.

The effectiveness of this technique has been tested in mice. Scientists were able to activate neurons in the medial septum and ventral tegmental area of the brain using near-infrared light. This activation was able to suppress seizures and trigger the release of dopamine, a neurotransmitter associated with reward and pleasure. This shows that the technique can have real and measurable effects on brain activity.

The potential applications of this technique are vast. It could be used to study a wide range of neural processes in mammals. For example, it could help scientists understand how different brain regions interact with each other, or how certain neurotransmitters affect behavior. It could also be used to develop new treatments for neurological disorders, such as epilepsy or Parkinson's disease.

However, there are also some limitations to this technique. For one, it relies on the injection of nanoparticles into the brain, which could potentially cause inflammation or other side effects. Additionally, the long-term effects of this technique are not yet known, and more research is needed to determine its safety and efficacy in humans. Despite these limitations, this technique represents a significant step forward in the field of neuroscience and has the potential to revolutionize the way we study and treat the brain.

Brain Waves Unlocked: A New Way to Control Neurons

Actions