Traveling waves emerge as a core mechanism of cortical information processing

September 30, 2026 at 07:52 PM1 min

This digest was compiled by AI from multiple sources — links to the originals are below.

Neuroscientists have identified complex traveling waves—source, sink, and spiral patterns—in the brain's electrical activity. A study published in April 2026 in Nature Communications links distinct wave patterns to different behavioral tasks. The findings shift the field from questioning the waves' relevance to viewing them as a major motif of cortical processing.

Key Facts

A study published in April 2026 in Nature Communications observed source, sink, and vortexlike spiral waves in neural activity.
The research team included Joshua Jacobs and Anup Das from the University of Chicago.
Earl K. Miller, a cognitive neuroscientist at MIT, stated that traveling waves are emerging as a major motif of cortical information processing.
The brain spends about half of its energetic resources maintaining electrochemical gradients that keep neurons poised to fire.

Wave Complexity

Neuroscientists have traditionally measured brain waves as basic planar oscillations using electrodes. Emerging evidence in humans and animals suggests traveling waves play a central role in brain function. A study published in April 2026 in Nature Communications observed source waves, sink waves, and vortexlike spiral waves. The team, including Joshua Jacobs and Anup Das from the University of Chicago, found that different behavioral tasks were associated with distinct wave patterns.

Functional Role

Earl K. Miller, a cognitive neuroscientist at MIT, said the work is moving from questioning the waves' relevance to recognizing them as a major motif of cortical information processing. Neurons can change connections over days or months, but behavior must adapt in seconds. A significant number of neuroscientists now believe large-scale wave patterns may help reorganize the brain in real time to meet behavioral demands. Joshua Jacobs noted that even if traveling waves were just the result of neurons firing, they still reveal directional organization in the brain.