Quiet fMRI technique captures whole-brain activity during complex mouse behaviors
A novel fMRI approach called SORDINO eliminates acoustic noise and image distortion, allowing artifact-free brain-wide recordings in behaving mice. The method successfully tracks neural networks during skilled motor tasks and social encounters, offering a new tool for preclinical systems neuroscience.
This new fMRI technique, named SORDINO, directly addresses two long-standing obstacles in brain imaging: the loud acoustic noise generated by standard scanners and the image distortion caused by movement. By eliminating these artifacts, researchers can now capture clear, whole-brain activity while mice perform natural behaviors like skilled motor tasks and social interactions. The method’s ability to track neural networks across the entire brain during such complex, unconstrained actions marks a significant technical advance.
Previously, fMRI in rodents typically required restraint or anesthesia, limiting its relevance to real-world brain function. SORDINO’s artifact-free recordings open a practical path for preclinical systems neuroscience, where understanding how distributed circuits coordinate during behavior is essential. The approach may enable more realistic studies of brain-wide dynamics, though its specific technical details and broader applications remain to be detailed in the full research.
This advance could reshape preclinical neuroscience by allowing researchers to study brain activity in freely behaving animals, potentially improving translation of findings to human conditions like motor disorders or social deficits. It may reduce reliance on invasive or restrictive methods, offering a more ethical and physiologically relevant alternative. However, its impact depends on reproducibility and adaptation to other species. Ultimately, it could accelerate drug development and deepen understanding of complex behaviors, but clinical benefits remain distant.