Very fascinating. This kinda stuff is probably the future of LDing. |
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http://www.news-medical.net/?id=42266 |
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Very fascinating. This kinda stuff is probably the future of LDing. |
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"If you realize Sunyata (the void), compassion will arise within your hearts; and when you lose all differentiation between yourself and others, then you will be fit to serve others." - Milarepa
Nah, probably porn will be a thing of the past but people are going to want video games for the social aspect and interaction. Until you can actually link brains and share dreams, I think there are certain types of people who are going to view it as too individual and anti-social of an experience. Sucks for them, I'd buy like 3 helmets all for myself! |
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does anyone know how I can get my hand on any low frequency Ultrasound devices? |
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a hospital? lol |
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"One prior stumbling block to using ultrasound noninvasively in the brain has been the skull. However, the acoustic frequencies utilized by Tyler and his colleagues to construct their pulsed ultrasound waveforms, overlap with a frequency range where optimal energy gains are achieved between transcranial transmission and brain absorption of ultrasound - which allows the ultrasound to penetrate bone and yet prevent damage to the soft tissues. Their findings are supported by other studies examining the potential of high-intensity focused ultrasound for ablating brain tissues, where it was shown that low-frequency ultrasound could be focused through human skulls." |
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I realize all these things, I just don't like screwing around with things I don't fully understand. And I'm not talking about soft tissue, more about things like brainwave entrainment and what exactly you're doing to your brain. Since I'd have no idea what I'd be doing, I don't like the idea of arbitrarily using things to mess with it |
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I read the study, and it stated that the feasibility of in vivo usage of LILFU as a therapeutic tool is yet to be proven. It seems like they tested a variety of tissues in vitro, and noticed ion/voltage modulation, citing studies that showed ultrasound can be focused beyond the skull, but had not actually tested this technique on human subjects (understandably). |
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This is what im thinking, the reason where not lucid duing dreams is because the dorsolateral prefrontal cortex is deactivated during dreams. |
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Last edited by westonci; 11-02-2008 at 07:05 AM.
Well the actual study is here: |
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I just read the study and they say that they used 440–670 KHz ultrasound. They said that low intensity, low frequency Ultrasound (LILFU) was used since both mathematical models and experimental data indicated that the optimal gain between transcranial transmission and brain absorption for Ultrasound is ∼600–700 KHz |
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Last edited by westonci; 11-02-2008 at 11:42 PM.
Ah, well then a 1Mhz function generator would work nicely. |
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Im not a tech wiz by a long shot, but do you know what they mean by "remotely" when they say "Remote Excitation of Neuronal Circuits Using Low-Intensity, Low-Frequency Ultrasound" |
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Well to my understanding, the ultrasonic transducer (to transduce is to transform energy into another form) transforms the high frequency waveforms (it says "low", but that's a relative term referring to the normal 20-40Mhz ultrasonic range) to physical vibrations. A normal sonic transducer is the simple speaker, using electromagetism to generate physical vibrations. |
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I just read the study from here |
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Well it's not as easy as "just trying" it; accurate ultrasonic transduction is difficult to reproduce without the necessary, often expensive, equipment. I've worked with electronics and the like quite a bit myself, and can see some parts being replaced by more simple, cheaper circuits, but other parts (i.e., the transducer) will still cost a few grand. |
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I think we just need a transducer, and just zap it at our foreheads. lol |
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Last edited by I H8 Reality; 11-03-2008 at 08:03 PM.
Haha, well if you wanna shell out that kind of money, be my guest. I'm just as interested as anyone else =] |
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I found a website that makes custom Ultrasonic Transdcucers. Check it out |
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Pulsed refers to the length of time the ultrasound was active. I believe in this experiment the pulse was the length of mere milliseconds, or less, but it should specify the length in the study. So the ultrasonic frequency has nothing to do with the pulse length. This is important since the focused vibrations generate heat, and consequently can damage tissue if it becomes exposed for too long (higher ultrasonic frequencies and higher amplitudes [power] are actually used to destroy tissues within the body). |
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Ive read the study man time over and from what Ive read the Ultrasonic Transducers had the following Properties. |
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Last edited by westonci; 11-10-2008 at 07:38 AM.
Good job finding that. |
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