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How the Brain Ignores Distracting Information to Coordinate Movements

Inhibitory neuron cell bodies (red) in the brainstem with their axonal projections (green) onto the cuneate cells (blue) that transmit touch information. This circuit regulates information conveyed by touch receptors in the hands as it enters the brain.
Credit: Salk Institute

The latest research has implications for understanding sensory disorders and building better prosthetics and robots that can fine-tune their movements based on what they touch. Researchers have discovered how neurons in a small area of the mammalian brain help filter distracting or disruptive signals — specifically from the hands — to coordinate dexterous movements. Their results may hold lessons in how the brain filters other sensory information as well.

As you read this article, touch receptors in your skin ar...

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