New microscope captures brain-wide electrical signals in real time
Researchers at MIT have created a high-speed imaging tool that records electrical activity across an entire zebrafish brain, offering unprecedented detail for studying neural networks.
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A team of engineers at MIT has introduced a microscope system that can track electrical signals as they move through the brain of a zebrafish. Unlike previous methods, which rely on slower calcium imaging, this new approach captures rapid voltage changes, including individual spikes and coordinated bursts triggered by external stimuli. The advance could help scientists map how neural networks function in real time, potentially shedding light on processes like sensory processing and decision-making. The technology was developed with support from major research initiatives and published in a leading scientific journal. By visualizing electrical activity with millisecond precision, the tool may open new avenues for understanding how brain circuits operate during complex behaviors. Researchers emphasize that this capability could accelerate discoveries in neuroscience by providing a clearer picture of brain dynamics than ever before. The work represents a significant step toward decoding the electrical language of the brain at scale, though further refinement will be needed to apply the method to larger or more complex systems.
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