A global screen for magnetically induced neuronal activity in the pigeon brain
Authors not listed · 2025
Researchers found robust, light-independent bilateral neuronal activation in the medial vestibular nuclei and caudal mesopallium of pigeons exposed to magnetic stimuli.
Plain English Summary
Researchers used whole brain activity mapping, tissue clearing, and light sheet microscopy to identify neuronal populations activated by magnetic stimuli in pigeons. They found robust, light-independent bilateral neuronal activation in the medial vestibular nuclei and the caudal mesopallium. Single-cell RNA sequencing of the semicircular cristae revealed specialized type II hair cells that express the molecular machinery for detection of magnetic stimuli by electromagnetic induction. The data supports a model where electromagnetic input from the semicircular canals activates a vestibular-mesopallial circuit in the pigeon brain.
Why This Matters
The authors note that how animals detect the Earth's magnetic field remains a mystery in sensory biology. They also note that despite extensive behavioral evidence, the neural circuitry and molecular mechanisms responsible for magnetic sensing remain elusive.
Show BibTeX
@article{a_global_screen_for_magnetically_induced_neuronal_activity_in_the_pigeon_brain_ce4498,
author = {Unknown},
title = {A global screen for magnetically induced neuronal activity in the pigeon brain},
year = {2025},
doi = {10.1126/science.aea6425},
}