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How we can use light to see deep inside our bodies and brains | Mary Lou Jepsen

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  • Recommended by 1 person, in Hacker News.
  • Presented by Mary Lou Jepsen, as the video describes them

For anyone, no background needed. Education, not medical advice.

296K views8 years ago1 recommendation

Brain and nervesHow the body worksNeuroscienceDiagnosis and clinical reasoning

Mary Lou Jepsen demonstrates how red light and holographic techniques can be used to image and stimulate deep body tissues.

In a series of mind-bending demos, inventor Mary Lou Jepsen shows how we can use red light to see and stimulate what's inside our bodies and brains. Taking us to the edge of optical physics, Jepsen unveils new technologies that utilize light and sound to track tumors, measure neural activity and could eventually replace the MRI machine with a cheaper, more efficient and wearable system. Check out more TED Talks: ted.com The TED Talks channel features the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and more. Follow TED on Twitter: twitter.com/TEDTalks Like TED on Facebook: facebook.com/TED Subscribe to our channel: youtube.com/TED

Why it's here

1 person recommends this

What people say. Recommended for its explanation of near-infrared light technology for non-invasive medical imaging and brain stimulation.

morphlein Hacker News • Recommends

On “Noninvasive imaging method can penetrate deeper into living tissue”

…nner in more depth. There are patents and a few scientific publications 3 that I'm aware of, but mostly many up to date talks with demonstrations by startup founder Mary Lou 4. And recently she is open sourcing5 parts of the hardware and software on github 6 so we can start building our own lab setups and improve the imageing software. 1 link to this video 2 link 3 link 4 link 5 link 6 link…
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pontifierin Hacker News • Mentions

On “Can you use a magnifying glass and moonlight to light a fire? (2016)”

There is a very interesting image in the article. It shows a bunch of light coming into a block and emerging as a beam. It also has a caption saying this is impossible. It struck me as very similar to the setup in this video. link to this video At about 4 minutes in, a nearly identical setup is shown with a beam of light emerging from a block of opaque material using holographic techniques. It seems plausible to me that a specially designed anti-moon hologram could allow reconstruction of the incident light from the sun, thus allowing a fire to be started without violating any law of thermodynamics.
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throwaway316943in Hacker News • Mentions

On “Trials begin for a new weapon against Parkinson’s: light”

Interesting to note that NIR light can penetrate deep into the body. There is research into using this as a medical imaging technique 0 and also research on improving age related vision loss 1 0 link to this video 1 link
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systemsignalin Hacker News • Mentions

On “DARPA grant to work on sensing and stimulating the brain noninvasively [video]”

Thoughts on openwater? link Claim to use light for imaging link to this video There’s also the company Kernel Both companies have pretty successful founders
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