Home Transcranial direct current stimulation User-Built tDCS Research Device | SpeakWisdom I’ve been tinkering with tDCS for several months now – including doing lots of reading and building of prototype devices. I also have a number of friends who are giving it a try. Along the way I’ve learned a number of things that could be useful to others: 1. 2. 3. 4. 5. tDCS devices built around the LM334 seem to work very well and provide very smooth adjustments to current level 6. In conjunction with the above, here is the schematic I use to build devices to tinker with. (This is my favorite design. (Almost done. (Completed except for labeling. (Digital meter in place of analog.) (Same basic design, just digital mA meter.) And finally, here is a link to a bit of doc I’ve written for use with the home-built tDCS research device and ActivaDose II. Comments and suggestions are welcome. Like this: Like Loading...
Soterix Medical Transcranial Direct Current Stimulation (tDCS) is a non-invasive procedure in which a device sends a small Direct Current (DC) across the scalp to modulate brain function. The Soterix Medical 1x1 tDCS Low-Intensity Stimulator sends a low-level current from the positive electrode, anode, to the negative electrode, cathode. When the extremely low level current passes from the anode to the cathode, it may simultaneously increase the activity of the brain by the anode and decrease the activity of the brain near the cathode. tDCS mechanisms are considered to result from the ability of very weak DC currents to safely induce reversible changes in cortical plasticity. The induction of lasting changes in cortical excitability can, under some conditions, reversibly modify behavior and interact with normal learning. tDCS dose can be defined as: 1) The size and position of the electrodes on the body and 2) The duration (in minutes) and intensity (in mA) of current passed across the electrodes.
Brain-Computer Music Interface - Hacked Gadgets - DIY Tech Blog It is hard to imagine what will be possible with direct mind control in the next dozen years. Will we be driving cars with no steering wheel? Read the research paper (warning it is a PDF). “Researchers at the University of Plymouth created this “Brain-Computer Music Interface”, which uses two laptops to analyze brain waves and composes music based on the results. The BCMI-Piano (Figure 1) falls into the category of BCI computer-oriented systems. Via: TechEBlog
Neuroinformatics Neuroinformatics is a research field concerned with the organization of neuroscience data by the application of computational models and analytical tools. These areas of research are important for the integration and analysis of increasingly large-volume, high-dimensional, and fine-grain experimental data. Neuroinformaticians provide computational tools, mathematical models, and create interoperable databases for clinicians and research scientists. Neuroscience is a heterogeneous field, consisting of many and various sub-disciplines (e.g., Cognitive Psychology, Behavioral Neuroscience, and Behavioral Genetics). Neuroinformatics stands at the intersection of neuroscience and information science. There are three main directions where neuroinformatics has to be applied:[2] History[edit] Next, Koslow pursued the globalization of the HPG and neuroinformatics through the European Union and the Office for Economic Co-operation and Development (OECD), Paris, France. Research achievements[edit]
DIY EEG (and ECG) Circuit CAUTION: I highly suggest doing this on a laptop, because there is a danger involved if there's a spike in voltage from the wall outlet. Regardless, BE VERY CAREFUL WITH THE PROBES GOING TO THE SOUND CARD. If they accidentally touch a high voltage source (i.e. you stick them into a power outlet), you can fry your computer's sound card. First thing to do is to download Processing, available at I encourage you to tinker with the program - change things, make your own, etc. Also, a little background on the FFT. From this, you can represent very complicated signals (any signal!) This program is really just a data acquisition / visualization one. Code available here.
Welcome to the OpenEEG project About the project Many people are interested in what is called neurofeedback or EEG biofeedback training, a generic mental training method which makes the trainee consciously aware of the general activity in the brain. This method shows great potential for improving many mental capabilities and exploring consciousness. Other people want to do experiments with brain-computer interfaces or just want to have a look at their brain at work. Unfortunately, commercial EEG devices are generally too expensive to become a hobbyist tool or toy. The OpenEEG project is about making plans and software for do-it-yourself EEG devices available for free (as in GPL). Right now, this site is mostly about the hardware; schematics, part lists, building instructions etc. Some regulatory business Commercial and clinical EEG devices must live up to certain standards. In other words, if you decide to build and use one -- the responsibility is yours.
Thoughtstream USB Personal Biofeedback : ThoughtStream Personal Biofeedback <div id="productImageCaption"><a href=" target="PopupImage"> view larger image </a></div> Product Details MindPlace is pleased to offer a USB version of our popular ThoughtStream Biofeedback Performance System. This tool measures the rapid, tiny fluctuations in your skin's electrical resistance known as the Galvanic Skin Response (GSR). Through use, the Thoughtstream learns what sensitivity level works best for you. ThoughtStream USB employs three forms of feedback: 1) Visual: The front panel display starts out all red. The ThoughtStream Biofeedback Performance System is one of the most affordable on the market, yet it allows precise and tailored readings suited for use in your daily life.
10 Futuristic User Interfaces - Smashing Magazine Advertisement Good user interfaces are crucial for good user experience. It doesn’t matter how good a technology is — if we, designers, don’t manage to make user interface as intuitive and attractive as possible, the technology will hardly reach a breakthrough. And here is where creative ideas and unusual interface approaches become important. Below we present 10 recent developments in the field of user experience design. You may also want to take a look at the related posts: Fez: 2D/3D Gaming Experience Over years we’ve managed to get used to traditional 2D gaming experience. Futuristic Glass This futuristic concept5 aims to integrate the capabilities of online-services in our daily life. Aurora User Interface Recently Adaptive Path has presented a new browser concept which was developed in partnership with Mozilla Labs and is an ongoing initiative to encourage designers and developers to contribute their own visions of the future of the browser and the Web. Motorolla Sparrow Tilty Snake
Store — MindWave The MindWave Education turns your computer into a private tutor. The headset takes decades of laboratory brainwave technology and puts it into a bundled software package for under $100. It safely measures brainwave signals and monitors the attention levels of students as they interact with math, memory and pattern recognition applications. Ten apps are included with experiences ranging from fun entertainment to serious education. (The MindWave is not compatible with mobile devices like the iPhone, iPad, and Android. - Lightweight - Wireless - Safe passive biosensors - 8-hour AAA battery life - Includes bonus CD with 10 neuroscience apps - Supports Windows XP / Vista / 7 - Supports Mac OS X 10.5.8, 10.6.x, and 10.7.x Hardware Overview: - Portable EEG brainwave headset - TGAM1 module, with TGAT1 ASIC - Automatic wireless computer pairing - Static headset ID - Single AAA battery - 6-8 hours battery run time Included Software: - Visualizer 2.0 - NeuroBoy - MyndPlay Specifications
How to Hack Toy EEGs | Frontier Nerds Arturo Vidich, Sofy Yuditskaya, and I needed a way to read brains for our Mental Block project last fall. After looking at the options, we decided that hacking a toy EEG would be the cheapest / fastest way to get the data we wanted. Here’s how we did it. The Options A non-exhaustive list of the consumer-level options for building a brain-computer interface: Open EEG offers a wealth of hardware schematics, notes, and free software for building your own EEG system. The Nerosky MindSet is a reasonable deal as well — it’s wireless, supported, and plays nicely with the company’s free developer tools. For our purposes, though, it was still a bit spendy. Given all of this, I think the Mind Flex represents a sweet spot on the price / performance curve. But first, the inevitable caveat: Use extreme caution when working with any kind of voltage around your brain, particularly when wall power is involved. The Hardware Here’s the basic layout of the Mind Flex hardware. The Hack Parts list: Software list:
Comparison of consumer brain–computer interfaces This is a comparison of brain-computer interface devices available on the consumer market. Comparison[edit] Open-source projects[edit] Emokit is an open-source Python library for reading out sensor data from the EPOC (Emotiv Systems) by Cody Brocious. Open-source Matlab toolboxes such as EEGLAB, Fieldtrip, and the Neurophysiological Biomarker Toolbox (NBT) can be used to process data from the electroencephalography. OpenVibe is a LGPL software platform (C++) to design, test and use BCI.[43] The software comes with an acquisition server that is currently compatible with many EEG device including Neurosky Mindset, Emotiv EPOC (Research Edition or above) and OpenEEG. Several open-source computer programs are also available from EPFL's CNBI project.[44][45] The openEEG project[46] has developed several open hardware EEG devices while the OpenBCI project[47] plans to release an open hardware device in 2014. Technology[edit] References[edit] External links[edit]