Mind Matters Natural and Artificial Intelligence News and Analysis

TagFingertips (sensory neurons)

federleicht-stockpack-adobe-stock
Federleicht

Our Sense of Touch: So Sharp It Spans a Single Fingerprint Ridge

Each of tens of thousands of sensory neurons is tuned in to a tiny surface area of the skin

If you’ve ever wondered why your sense of touch, even on the dead surface of the skin, seems so acute, researchers looked into that and shared their findings last year: Sensory neurons in the finger can detect touch on the scale of a single fingerprint ridge, according to new research published in Journal of Neuroscience. The hand contains tens of thousands of sensory neurons. Each neuron tunes in to a small surface area on the skin — a receptive field — and detects touch, vibration, pressure, and other tactile stimuli. The human hand possesses a refined sense of touch, but the exact sensitivity of a single sensory neuron has not been studied before. Society for Neuroscience, “Fingerprints Enhance Our Sense…