ࡱ> `b_% N&bjbj%% ">GG4"llllllll8Pd<Y2"~YYYYYYY$1[ Q]YlYllYll~Y~Y6  BUll~Y K  V,~YY0YV]2]~YllllChaos Communications Camp 2007 Presentation 11-Aug-07, 21:30, Shelter Bar (1) Title & Contact info (2) Brain Machine: Presents a brainwave sequence through pulsing light & sound that your brain entrains to. If the sequence is for a desired state of consciousness, it brings you there. Sleep, Meditation, Waking Interesting side effect is that you hallucinate wild patterns. Im not an expert on brain physiology. But Ive studied and thought about and played with brainwaves since university. (3) Brainwave types: (show EEG picture) measured by Electroencephalograph (EEG) Beta 13 to 30Hz Conscious, External Focus Alpha 8 to 13Hz Spacey, Dreamy, Receptive Passive Theta 4 to 8Hz Subconscious, Deep Relaxation, Creativity Delta to 4Hz Unconscious, Intuition, Insight Gamma 30 to 100Hz not a lot known, but linked to Perception, Alertness, Anxiety Not known why these gross patterns exist. Thought to be communication of various parts of brain to create Whole out of parts. (4) Brainwave sequence: Any healthy person going from one state to another follows the same basic sequence. For instance, going from awake to asleep, or going from awake into deep meditation. Meditation, as an example: Awake (Beta) Beta decreases as Alpha (spacey, trancey) fades in Theta (subconscious) fades in, Beta reduced further Pulse Delta (unconscious, insight) This is meditation: being consciously aware while experiencing subconscious and unconscious activity. Hang out here in deep meditation for awhile Reverse process to come out feeling fabulous (relaxed and invigorated). (5) Inventing: Meditating on something useful to do with electronics: What if played brainwaves into someones brain? Would brainwaves synch up? If so, would you be in associated state? While researching, the good news is the answer to above is: Yes Entrainment The disappointing news (at least, at first) was that zillions of people had already thought of this idea. But there is a rich field of study. Incidentally: inventing almost always involves thinking up ideas that others have already thought up. Its as if ideas become ready, and then many think it up all at once. TV-B-Gone seems to be an exception. (6) History: Pusling sound in ancient times: Alpha and Theta in trance inducing ritual dance and music. Pulsing light: 2nd century, Ptolemy experienced Euphoria studying effects of light shining through a spinning wheel. (7) 1920s: invention of EEG to measure brainwaves. Berger first to use on humans, and categorized brainwave types. W. Grey Walters in 30s studied brainwaves, and was the first to knowingly play brainwaves, rather than just record them. Used strobe lights to induce Alpha in subjects to get a baseline. (8) 1959: based on work of Walters, beat visionary Brion Gysin invented his Dream Machine: cardboard cylinder with cutout patterns, on a 78rpm turntable, with a light hanging inside. Stare at it with eyes closed experience wild hallucinations. Popular at parties. (show party pictures). 1970s: Medical research showed with some repeatability that some peoples brains would entrain to pulsing sound and/or light. First patent for device combining sound and light in 1974. Dr. Maxwell Cade connected Buddhist monks up to EEG to record their brainwaves. The Monroe Institute used Sound & Light Machines to study how people go into altered states of consciousness. (9) Dance clubs start using strobes to induce trance in dancers. (10) 1980s and 1990s: Surge in popularity of Sound & Light Machines partly due to Megabrain Power, a best selling book by Michael Hutchison. Medical studies show some physiological benefits for people with ADHD and substance abuse issues. Proliferating beneficial claims: higher IQ, increased creativity, enhanced memory, better health. How real? Who knows. Entrainment is real. And one thing for sure is that the hallucinations are great, and there are no negative effects. Why not play and see for oneself? Cautionary note: blinking lights should be avoided by anyone prone to seizures. Certain conditions, such as ADHD, can worsen with Theta and Delta entrainment. (11) 2007: MAKE article, (12) party pictures. (13) Brain Machine for MAKE article: Mind Machines are often very expensive. Heres a way to make one really cheap. And it is designed for absolute beginners. Based on a fun, inexpensive kit that already works great: Ladyadas MiniPOV kit. (Picture by thecheatosx) The cool thing with microcontrollers in general, is that the same basic hardware can be used to create very different projects. So, hacking the MiniPOV to become a Brain Machine required very little hardware change mostly just new firmware. (14) Cool thing about the particular micro on the MiniPOV is that it needs no external programmer just the serial port connector that comes with the MiniPOV, and free, easy to use software that you can download. (picture of SLM on back of laptop) This micro also has a great online community or people wanting nothing better than to answer your questions about Atmel AVR chips, and how to use them. AVRfreaks.net (15) Binaural Beats: Beat frequencies (sound clips: base freq, offset freq for Alpha) (16) Binaural Beats are only in your head. Not known why you hear them, but almost everyone does. Since brain is actively involved, it is good for entrainment. (17) Brain Machine Theory: Sound and Light together. Brain constantly putting out complete spectrum, but this simple brain machine only does one brainwave frequency at a time. Goes through a meditation sequence (as described earlier). (18) (Cartoony Illustration) Since only one frequency at a time, to reduce Beta and fade in Alpha, alternate back and forth between the two while reducing the length of Beta and increasing the length of Alpha in each iteration. Base frequency in one ear stays the same throughout sequence. Offset frequency in other ear determines brainwave type. Pulsing lights are the same in each eye, and are the same as the binaural beats. (19) Firmware: brainwaveTable contains complete brainwave sequence. Two timers: base ear, offset ear LEDs blinked manually in timing loop, which also determines length of time for playing a brainwave type. Main loop plays each element of brainwaveTable and then puts micro to sleep. (20) Hardware: Schematic Very simple: micro, 2 LEDs for eyes, 2 LED outputs used for speakers, with simple passive LPF Graphix: look cool! (21) Meditation: New to meditating? Here are a few ideas. Breathe normally and pay attention to your breathing. If you space out, no worries just focus on your breathing again. Another way is no focus just follow your thoughts wherever they go. Watch where they go Alternatively, concentrate on something before you start: solving a technical problem, exploring pros and cons about a difficult decision, or feeling through problems in a relationship. If you space out, no worries just refocus on your intention. There is no end to the variety of what you can do in a meditative state. Wonder about what youd like different in your life? Imagine you already have the life you want to live what would it be like? Can you live it now? You may be surprised at the changes that occur in your life. (22) Improvements to the basic design: The Brain Machine I outlined here works really well. But it can be improved. Im working on a more complex SLM that incorporates the following improvements: Fade the audio in at beginning and especially fade out at the end (gentler). Fade the lights on and off, rather than blinking at full power (easier on the eyes). Mask the binaural beats with music or ethereal sounding drones. Use up to four frequencies at once, one for each brainwave type (enhances entrainment). Vary the output intensity of each frequency the SLM works with (enhances entrainment). Use a different colored LED for each brainwave type (enhances entrainment). Use a differently pitched binaural beat for each brainwave type (enhances entrainment). Use a more powerful microcontroller (to implement all of the above). Make multiple brainwave sequences available (e.g., sleep, meditation, arousal). Use a wrap-around soft fabric sleep-mask (more comfortable, especially for sleeping). Use lighter and smaller batteries (more comfortable). Ill be using a rechargeable battery that is soft and flexible, sewn into the sleep mask. (play audio clips of actual device 4 brainwave types at once sleep clip.) (23) Using Brain Machine (Play video) I have several Brain Machines for people to try. And lots of parts for people to build their own! (24) Further study (25) Q&A (26) Contact Info PAGE  PAGE 5 +Legz Jund ? @ A P ? J , . hlV[qv.C'(C3,s n%p%%%%%3&4&5&;&<&=&0J j0JUCJH* >*CJaJ6CJ]aJ5\5CJ\aJCJaJ 5CJaJPJKLefgz=|}  JuGm b   b  @ @ ^ ~ ^ & F ^4&M&mn A d ? @ A P = ^ ^` ^` @ p^p^ = > L M   oh``  `^:UVqa-.C'( `^`` ^` ^``  `(C]239r ,]rs ^ l!!"N"""I###6$$% %n%o%p%%%%% px@Bh^h & F px@B px@B $ @@%%%&&&& &!&3&4&=&>&?&J&K&L&M&N&h]h&`#$^=&?&@&F&G&H&I&J&M&N&CJaJ0JmHnHu0J j0JU 1h/ =!0"0#$% i8@8 NormalOJQJ_HmH sH tH <@< Heading 1$@&^CJaJB@B Heading 2$h@&^h5CJ\aJN@N Heading 3$~ R@&^~ `R56CJ]aJ<@< Heading 4$ @&CJaJ<@< Heading 5$@&^CJaJ<A@< Default Paragraph Font, @, Footer  !&)@& Page NumberLC@L Body Text Indent2 ^2 `CJaJHR@"H Body Text Indent 2 ^CJaJPS@2P Body Text Indent 3p0^p`0CJaJ>B@B> Body Text px@BCJN">JKLefgz=|}  JuGmn Ad?@AP=>LM    o h :UVqa-.C'(C]239r ,]rslNI6 ! !n!o!p!!!!!!!"""" 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