--- title: High-speed microscopy reveals electrical activity across... description: MIT engineers built a modified light sheet microscope capable of scanning the entire brain of a larval zebrafish 200 times per second, enabling... canonical: https://daily.dev/posts/high-speed-microscopy-reveals-electrical-activity-across-the-brain-btpe8q76e twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: High-speed microscopy reveals electrical activity across the brain | daily.dev og:description: MIT engineers built a modified light sheet microscope capable of scanning the entire brain of a larval zebrafish 200 times per second, enabling... og:url: https://daily.dev/posts/high-speed-microscopy-reveals-electrical-activity-across-the-brain-btpe8q76e og:image: https://api.daily.dev/og/posts/btpe8Q76E.png og:image:alt: High-speed microscopy reveals electrical activity across the brain og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # High-speed microscopy reveals electrical activity across the brain **[MIT News](https://daily.dev/sources/mit)** · 6 min read · 0 upvotes · 0 comments ## Summary MIT engineers built a modified light sheet microscope capable of scanning the entire brain of a larval zebrafish 200 times per second, enabling millisecond-scale imaging of electrical activity across distributed neurons. Using genetically encoded voltage indicators (Positron2-Kv), the team captured individual voltage spikes and bursts across roughly a quarter of neurons, revealing activity patterns in the optic tectum, cerebellum, and hindbrain following light stimulation. The work, led by Ed Boyden's lab and published in Nature Methods, aims to help neuroscientists understand how neurons coordinate as whole-brain networks, with future plans to extend the technique to mice. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How fast can the new MIT microscope scan an entire zebrafish brain to capture neural activity? The microscope can scan the entire larval zebrafish brain 200 times per second, or once every five milliseconds, fast enough to capture individual voltage spikes from neurons. This was achieved by modifying a light sheet microscope, increasing camera acquisition speed, and boosting scanning speed with a technique called remote refocusing. _daily.dev surfaces research breakthroughs like this for engineers tracking advances in imaging technology._ ### Why is voltage imaging better than calcium imaging for measuring neuron activity? Voltage imaging directly captures the electrical impulses neurons use to compute, while calcium imaging only measures calcium influx as an indirect proxy that occurs on the order of seconds or minutes. Calcium imaging is too slow to detect single spikes of activity, whereas voltage imaging with genetically encoded voltage indicators enables millisecond-scale resolution. _researchers comparing imaging techniques can follow developments like this on daily.dev._ ## Similar posts on daily.dev - [Fast Volumetric Imaging Of Seizures With Adaptive Optics Light Sheet Microscopy](https://daily.dev/posts/fast-volumetric-imaging-of-seizures-with-adaptive-optics-light-sheet-microscopy-eipkbfmsk) · Hackaday · 0 upvotes · 0 comments - [Scientists Grow Electronics Inside the Brains of Living Mice](https://daily.dev/posts/scientists-grow-electronics-inside-the-brains-of-living-mice-4u7b455pa) · Singularity Hub · 0 upvotes · 0 comments - [Self-organizing “pencil beam” laser could help scientists design brain-targeted therapies](https://daily.dev/posts/self-organizing-pencil-beam-laser-could-help-scientists-design-brain-targeted-therapies-nnktmwkhj) · MIT News · 0 upvotes · 0 comments - [Simulated zebrafish and a vision-equipped robotic fish reveal how the body shapes brain circuits](https://daily.dev/posts/simulated-zebrafish-and-a-vision-equipped-robotic-fish-reveal-how-the-body-shapes-brain-circuits-3kba43x3z) · Robohub · 0 upvotes · 0 comments - [This tool could show how consciousness works](https://daily.dev/posts/this-tool-could-show-how-consciousness-works-d3b29ubj1) · MIT Technology Review · 0 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/high-speed-microscopy-reveals-electrical-activity-across-the-brain-btpe8q76e) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"High-speed microscopy reveals electrical activity across the brain","url":"https://daily.dev/posts/high-speed-microscopy-reveals-electrical-activity-across-the-brain-btpe8q76e","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/high-speed-microscopy-reveals-electrical-activity-across-the-brain-btpe8q76e"},"datePublished":"2026-08-14T09:02:51.769Z","dateModified":"2026-08-14T09:03:10.409Z","description":"MIT engineers built a modified light sheet microscope capable of scanning the entire brain of a larval zebrafish 200 times per second, enabling...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/412f727078e821b414ce825e07ebbf1a?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/412f727078e821b414ce825e07ebbf1a?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"MIT News","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"MIT News","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/881e20a40aa44b12ba4bd27f5c14289d","url":"https://daily.dev/sources/mit"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/high-speed-microscopy-reveals-electrical-activity-across-the-brain-btpe8q76e","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"","timeRequired":"PT6M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"MIT News","item":"https://daily.dev/sources/mit"},{"@type":"ListItem","position":3,"name":"High-speed microscopy reveals electrical activity across the brain"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/high-speed-microscopy-reveals-electrical-activity-across-the-brain-btpe8q76e#faq","mainEntity":[{"@type":"Question","name":"How fast can the new MIT microscope scan an entire zebrafish brain to capture neural activity?","acceptedAnswer":{"@type":"Answer","text":"The microscope can scan the entire larval zebrafish brain 200 times per second, or once every five milliseconds, fast enough to capture individual voltage spikes from neurons. 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