Scientists have identified a new type of brain wave that physically rotates across the cortex, acting like a spatiotemporal clock to coordinate sensation and voluntary movement.
The Research
Researchers at the University of Washington School of Medicine, led by Nick Steinmetz, associate professor of neurobiology and biophysics, published findings in Science showing that these spiral waves originate in the somatosensory cortex and rely on a unique circular layout of neurons whose axons point in a circle—like a merry-go-round. Using cortex-wide imaging and electrophysiology in mice, they found that a puff of air to the whiskers instantly triggered clockwise rotating waves. These waves mirrored across both brain hemispheres, connected sensory and motor areas, and synchronized with deeper structures including the thalamus, striatum, and midbrain. The waves shifted shape based on the animal's task and arousal level.
Why It Matters
This discovery reveals a fundamental mechanism for how the brain sequences sensation and action. The spiral waves may help predict sensory patterns and entrench motor skills—essential for learning and coordination. For anyone curious about their own brain, understanding these waves could inform future approaches to cognitive training, especially for improving reaction time, motor learning, and sensory integration.
What You Can Do
Although lab research is preliminary, you can enhance sensory-motor coordination with activities that require precise timing: playing a musical instrument, practicing a sport, or using brain-training games that challenge reaction speed and sequence memory.
Source: Neuroscience News
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