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	<id>https://replica.wiki.extremist.software/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Judas</id>
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	<entry>
		<id>https://replica.wiki.extremist.software/index.php?title=Meeting_instructions&amp;diff=28372</id>
		<title>Meeting instructions</title>
		<link rel="alternate" type="text/html" href="https://replica.wiki.extremist.software/index.php?title=Meeting_instructions&amp;diff=28372"/>
		<updated>2012-12-12T04:06:25Z</updated>

		<summary type="html">&lt;p&gt;Judas: removed a song&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;These are instructions for having a Noisebridge [[Meeting]]. Good luck! To start with, you&#039;ll need a moderator and a note taker. Optionally, you can pick a membership-binder-wrangler; otherwise the moderator can take care of it. You&#039;ll also need some participants. They&#039;re important.&lt;br /&gt;
&lt;br /&gt;
= Roles =&lt;br /&gt;
&lt;br /&gt;
== Note-taker ==&lt;br /&gt;
* Open a text editor to take notes on the major points of the meeting, using this page at the template.&lt;br /&gt;
* Project the draft meeting notes and agenda in real time throughout the meeting.&lt;br /&gt;
* Edit the [[Current_Consensus_Items|Current Consensus Items]] if anything is proposed for consensus next week.&lt;br /&gt;
* Edit the [[Consensus_Items_History|Consensus Items History]] if anything was reached consensus or failed to reach consensus this week.&lt;br /&gt;
* Post the meeting notes to this page, and email the announcement and discussion list with a short summary.&lt;br /&gt;
* Tell treasurer@noisebridge.net and secretary@noisebridge.net if there are new members.&lt;br /&gt;
&lt;br /&gt;
== Moderator ==&lt;br /&gt;
* Understand the structure of Noisebridge [[consensus|decision-making]]&lt;br /&gt;
* Make sure everyone gets a chance to speak.&lt;br /&gt;
* Speak only minimally yourself.&lt;br /&gt;
* Keep the meeting moving, and avoid getting bogged down.&lt;br /&gt;
* Identify discussion items, arrange times limits for talking about each item.&lt;br /&gt;
* Identify and summarize consensus, suggest things that need to be done.&lt;br /&gt;
* &#039;&#039;&#039;Get the [[membership binder]] and ensure that it is returned safely.&#039;&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
== Participants ==&lt;br /&gt;
* Say your name before you talk.&lt;br /&gt;
* Remain on-topic, and speak as concisely as possible.&lt;br /&gt;
* Assist the note-taker with any links or corrections that are needed.&lt;br /&gt;
* Remain respectful of other participants, their time, and the consensus and moderation process.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
= Agenda =&lt;br /&gt;
&lt;br /&gt;
This is the standing agenda of a Noisebridge meeting.&lt;br /&gt;
&lt;br /&gt;
== Introduction and Names ==&lt;br /&gt;
&lt;br /&gt;
* &#039;&#039;&#039;Invite a knowledgeable volunteer to explain&#039;&#039;&#039; [[Noisebridge_Vision|what Noisebridge is about]]:&lt;br /&gt;
&amp;lt;blockquote&amp;gt;Noisebridge is a 501c3 nonprofit that provides a space for creation, collaboration, and learning about technology and creative projects. Noisebridge provides space, power tools, and infrastructure to help the public learn new skills and create cool things. Noisebridge continues to exist through and depends entirely on membership fees and donations. Our code of conduct is &#039;Be excellent to each other&#039;.&amp;quot;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
* You may wish to &#039;&#039;&#039;invite a knowledgeable volunteer to give &#039;&#039;&#039;[[Consensus Process|a brief primer on consensus process]], or you may wish to defer this until the consensus segment of the meeting.&lt;br /&gt;
* Introduce any new or unusual moderation techniques that you may be using during the meeting like: direct responses, limited speaking time, orderless stack, &amp;amp;c.&lt;br /&gt;
* Round of introductions (remember, announcements come later):&lt;br /&gt;
** What&#039;s your name, &lt;br /&gt;
** are you a member,&lt;br /&gt;
** what do you do, and&lt;br /&gt;
** if you are new: how did you hear about Noisebridge?&lt;br /&gt;
&lt;br /&gt;
== Short Announcements ==&lt;br /&gt;
* Cool new projects? Something you&#039;d like people to know? Say now, but keep it short!&lt;br /&gt;
* Any happenings at the space of which members should be made aware.&lt;br /&gt;
&lt;br /&gt;
== New or Stale Events ==&lt;br /&gt;
* Is there anything new happening at the space?&lt;br /&gt;
* Is there anything that has stopped happening at the space?&lt;br /&gt;
* If this is the first meeting of the month, review all the [[:Category:Events | events at the space]] and try to weed out stale events.&lt;br /&gt;
&lt;br /&gt;
== [[Membership Binder]] ==&lt;br /&gt;
* &#039;&#039;&#039;Invite a knowledgeable volunteer to describe&#039;&#039;&#039; [[membership]], and the application process.&lt;br /&gt;
&amp;lt;blockquote&amp;gt;Being a member of Noisebridge is not like being a member of a gym or your local chess club. Anyone can come to Noisebridge to hack and learn: you don&#039;t need to be a member for that. At Noisebridge, membership is something different: it means taking responsibility and committing to help to maintain, improve, and govern Noisebridge. As a member of Noisebridge, you don&#039;t just come here to hack and learn, you actively work to improve what you see around you, help to deal with problems, and make this community better than it is today.&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
&amp;lt;blockquote&amp;gt;If you want to show your commitment to Noisebridge and the community here without becoming a capital-M-Member, consider being a Noisebridge associate. Associates pay their dues to the treasurer just like members, use the space just like members, and are valued participants in the community just like members. The difference is that associate membership doesn&#039;t involve consensus: there&#039;s no need to go through consensus to become an associate, but associates don&#039;t get to block consensus either.&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
* Read off any names from the binder for the past month. Write a check on every open application.&lt;br /&gt;
* Anyone eligible to join this week should&lt;br /&gt;
** introduce themselves,&lt;br /&gt;
** answer any questions members may have for them, then&lt;br /&gt;
** leave the area in search of gifts (traditionally beer and a lime, or cookies) for the rest of the group.&lt;br /&gt;
* The rest of the meeting should reach consensus on whether they may join.&lt;br /&gt;
* Remember to applaud new members when they return.&lt;br /&gt;
&lt;br /&gt;
== Financial Report ==&lt;br /&gt;
* Funds in bank&lt;br /&gt;
* Noisetor (See the bulletpoints at the bottom of http://noisetor.net/finances/#summary)&lt;br /&gt;
&lt;br /&gt;
== Consensus items ==&lt;br /&gt;
You may wish to &#039;&#039;&#039;invite a knowledgeable volunteer to repeat &#039;&#039;&#039;[[Consensus Process|a brief primer on the consensus process]].&lt;br /&gt;
&lt;br /&gt;
=== Proposals from last week ===&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;(Add any items which pass or are blocked to the [[Consensus Items History]] page.)&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
=== Proposals for next week ===&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;(Add any new items for consensus to the [[Current Consensus Items]] page.)&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
== Discussion Items ==&lt;br /&gt;
&lt;br /&gt;
If an item of discussion drags on too long, further discussion may be postponed until after the meeting ends.&lt;br /&gt;
&lt;br /&gt;
During discussion, it is not necessary to write down exact what each person says. Record the topics of discussion, and any items of consensus or controversy here. Detailed descriptions of the conversation should go on the discuss page for this meeting.&lt;br /&gt;
&lt;br /&gt;
== End of Meeting ==&lt;br /&gt;
* Reprise of the [[Hackernationale]]. [This is anarchy - we do what the wiki says!]&lt;br /&gt;
* [[PGP|PGP Key Signing]] could happen now, check the [[PGP|list]] to see who wants in on the action.&lt;br /&gt;
* Return the [[membership binder]] to it&#039;s rightful location.&lt;br /&gt;
* Clean and tidy the meeting notes, then save them to the wiki.&lt;br /&gt;
* Send a summary of the meeting notes to the discussion list.&lt;br /&gt;
* Enjoy the company of your fellow hacker or robot.&lt;br /&gt;
* Discuss any items for which there was not time during the meeting.&lt;/div&gt;</summary>
		<author><name>Judas</name></author>
	</entry>
	<entry>
		<id>https://replica.wiki.extremist.software/index.php?title=Meeting_Notes_2012_11_27&amp;diff=28230</id>
		<title>Meeting Notes 2012 11 27</title>
		<link rel="alternate" type="text/html" href="https://replica.wiki.extremist.software/index.php?title=Meeting_Notes_2012_11_27&amp;diff=28230"/>
		<updated>2012-11-28T05:21:16Z</updated>

		<summary type="html">&lt;p&gt;Judas: Meeting  27 Nov 2012&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;You should read the [[meeting instructions]] forthwith!&lt;br /&gt;
&lt;br /&gt;
These are the notes from the [https://www.noisebridge.net/wiki/Category:Meeting_Notes The 244th Meeting of Noisebridge]. Note-taker: John; Moderator: Snail.&lt;br /&gt;
* &#039;&#039;&#039;One or two bullet points of high-level meeting summary.&#039;&#039;&#039;&lt;br /&gt;
 &lt;br /&gt;
= Short announcements and events =&lt;br /&gt;
* Industrial sewing machine is broken, need a tap and die, but our set has been stolen.&lt;br /&gt;
None of the others seem to be working optimally right now.&lt;br /&gt;
* Sysadmin group has been rebooted as a sysadmin class, this week was user permissions and next week is xorg. 3-430 in turing, 6-7 in church.&lt;br /&gt;
&lt;br /&gt;
Events&lt;br /&gt;
* Linux for newbies class by Eric is gone and people keep showing up. Might want to point that out.&lt;br /&gt;
* RAYC has pointed out that people come from out of town for Alex class on unity and he hasn&#039;t been showing up, so hopefully he will be showing up in the future.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
= [[ Membership Binder ]] =&lt;br /&gt;
* The name of the applicant, the week of their application, and their sponsors.&lt;br /&gt;
* Andrew Byrne has four weeks.&lt;br /&gt;
* Thomas Harper, 3 weeks&lt;br /&gt;
* Colin Anderson, 4th week, &lt;br /&gt;
&lt;br /&gt;
= Financial Report =&lt;br /&gt;
* Funds in bank:&lt;br /&gt;
* Noisetor balance:&lt;br /&gt;
&lt;br /&gt;
None of those who should know these things are here. But we think maybe we have about what we had last time. Possibly less, possibly more. &lt;br /&gt;
&lt;br /&gt;
= Consensus items =&lt;br /&gt;
&lt;br /&gt;
== [[ Consensus Items History | Proposals from last week ]] ==&lt;br /&gt;
&#039;&#039;(Add any items which pass or are blocked to the [[Consensus Items History]] page.)&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
== [[ Current Consensus Items | Proposals for next week ]] ==&lt;br /&gt;
&#039;&#039;(Add any new items for consensus to the [[Current Consensus Items]] page.)&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
= Discussion Notes =&lt;br /&gt;
Discussion about letting the payphone call in. Getting access code setup was talked about. Nothing really squared there.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Very, very long discussion about a tag tracking/bug tracking system that (John, who is a US Citizen) has developed in order to track equipment in the space and the status of the equipment. The system is independent of this application. Discussion being used to after meeting.&lt;br /&gt;
&lt;br /&gt;
RAYC is now going to build a parallel NB wiki.  &lt;br /&gt;
&lt;br /&gt;
Chris apparently became confrontational with a number of people in the space at 2am some day last week, Josh and others including RAYC, saw this incident and became disturbed. Some discussion and a mediator is probably in order. John and Snail are going to give a run at this.&lt;br /&gt;
&lt;br /&gt;
= Attendance =&lt;br /&gt;
* List of names and short summary. For bonus points, link wiki user pages.&lt;br /&gt;
Snail&lt;br /&gt;
John&lt;br /&gt;
RAYC who is racing around&lt;br /&gt;
John who is a US Citizen&lt;br /&gt;
Chris, crazy mad scientist&lt;br /&gt;
Mike, technowander who isn&#039;t a quartermaster&lt;br /&gt;
Thomas, member shelf excited person who&#039;s small business took off and dropped that. Has giant fish.&lt;br /&gt;
Mischeif, likes plan 9&lt;br /&gt;
Leif, store clerk, quartermaster and not a technowanderer.&lt;br /&gt;
Jonathan, a meat popsicile&lt;br /&gt;
sheldon, first time.&lt;br /&gt;
brian, elec engineering.&lt;br /&gt;
Rob, dish washer and linux newbie&lt;br /&gt;
Super Q, not wearing any shoes.&lt;br /&gt;
Bisitor from Ukrain and portalnd who refuse to introduce themselves.&lt;br /&gt;
Apostolos, from NYC visiting from NYC resistor, robotics, hardware, electrical.&lt;br /&gt;
David, a game designer.&lt;br /&gt;
James, Sys admin.&lt;br /&gt;
Philip, member of the tokyo hackerspace&lt;br /&gt;
Josh, the guitar person who does songbridge.&lt;br /&gt;
Martin, electronics enthusiast with a new haircut.&lt;br /&gt;
Casey, who is in the cloud.&lt;br /&gt;
&lt;br /&gt;
[[Category:Meeting Notes]]&lt;/div&gt;</summary>
		<author><name>Judas</name></author>
	</entry>
	<entry>
		<id>https://replica.wiki.extremist.software/index.php?title=TDCS&amp;diff=27865</id>
		<title>TDCS</title>
		<link rel="alternate" type="text/html" href="https://replica.wiki.extremist.software/index.php?title=TDCS&amp;diff=27865"/>
		<updated>2012-10-25T08:48:58Z</updated>

		<summary type="html">&lt;p&gt;Judas: /* Anecdotes */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;This is a page skeleton for some new projects we&#039;re going to document here! Feel free to fill shit in. --[[User:Hurtstotouchfire|Hurtstotouchfire]] 21:16, 7 May 2012 (UTC)&lt;br /&gt;
&lt;br /&gt;
==Transcranial Direct Current Stimulation==&lt;br /&gt;
[http://en.wikipedia.org/wiki/Transcranial_direct-current_stimulation Wikipedia, bitches]. For the record, the acronyms tDCS and TDCS are both in use in academia, and I think the former is stupid because they&#039;re just trying to be cool like iPhones and fMRI. The word transcranial is obviously abbreviated, and when we abbreviate words in an acronym, we capitalize them. So if you move this page to tDCS, I will move it back. --[[User:Hurtstotouchfire|Hurtstotouchfire]] 01:14, 12 May 2012 (UTC)&lt;br /&gt;
&lt;br /&gt;
===Academic publications===&lt;br /&gt;
&lt;br /&gt;
The best collection of academic study abstracts is [http://dl.dropbox.com/u/27418725/tDCS%20Abstracts%20-%20July%202011.pdf here].&lt;br /&gt;
(note that we should snatch this and put a copy somewhere, since we have no clue who this dropbox account belongs to or how long access will stay stable. The file has credit within, so I don&#039;t think it&#039;s evil. I will try to remember to email the creator and make sure he has no issues with same) - JPW&lt;br /&gt;
&lt;br /&gt;
There are quite a few other abstracts from more recent work that aren&#039;t included here, including the stuff from the most recent big neuro yearly powwow in DC. (Kelly, do you still have the links to those papers from the military guys at Wright-Patterson?) - JPW&lt;br /&gt;
:I have no crapping idea. --[[User:Hurtstotouchfire|Hurtstotouchfire]] 01:14, 12 May 2012 (UTC)&lt;br /&gt;
&lt;br /&gt;
===Anecdotes===&lt;br /&gt;
[http://www.reddit.com/r/TDCS TDCS subreddit] &lt;br /&gt;
Note that this source of information is wildly inconsistent. While a few people there are fairly well educated on the subject, a huge amount of outright misinformation lives and breeds there.   judas 08:47, 25 October 2012 (UTC)&lt;br /&gt;
&lt;br /&gt;
==Spec==&lt;br /&gt;
&lt;br /&gt;
The basic circuit for TDCS is ridiculously simple. We are creating a 2ma DC current and running it through 2 inch square or round electrodes that are then connected to the human body. There are various configurations that can be used to place the pads, but the most common is placing the active electrode over the area of the skull corresponding to the brain region to be effected and the other electrode, called the return electrode, is placed on the opposite shoulder. Using the anode, or positive electrode, over the brain will stimulate the target region. The cathode, or negative electrode, will retard the brain region. A standard simulation time in most research is 20 minute sessions. The effect, depending on the type of stimulation and region seems to last up to an hour after the stimulation is removed. Again, depending on the type and location of the stimulation, repeated exposure daily for up to 9 sessions can cause the effects to persist for 30 days or longer in depression studies.&lt;br /&gt;
&lt;br /&gt;
The simplest working circuit for this is a pair of 9v batteries in series, an LM334 current limiter and a fixed resistor across the LM334 reference and output to set the 2ma limit. A better circuit involves replacing the fixed resistor with a 200 ohm pot and adding an ammeter anywhere in series. One of the better designs of this nature is located [http://imgur.com/a/CrzTG here]. Although the fuse in the circuit is of unlikely utility in reality.&lt;br /&gt;
&lt;br /&gt;
A fairly simple, slightly unsafe and highly voltage limited arduino project that is somewhat clever is located [http://sourceforge.net/p/openbrainstim/wiki/Hardware/ here].&lt;br /&gt;
&lt;br /&gt;
The cadillac of designs here would probably look something like an arduino controlling a SPI variable resistor connected to an LM334 for current control, another LM334 with a fixed resistor to provide failure protection (a fuse is going to blow too slowly and fuses that small are expensive and difficult to source), a shunt ammeter connected back to the Arduino and a display/input to allow the user to set different times, current levels, sham stimulation and so on. Also we would want to put a boost transformer on the battery supply in order to boost the output voltage being used. Discussion of why we want to up the voltage here will happen in the section on electrodes.&lt;br /&gt;
&lt;br /&gt;
(need to add a long discussion about electrodes here, since there is more complexity in the electrodes than the circuit itself)&lt;br /&gt;
&lt;br /&gt;
==Other Resources==&lt;br /&gt;
*link to that great website with the videos.&lt;br /&gt;
*anyone else have spec online?&lt;br /&gt;
* Journalist becomes a hardened killing machine on [http://www.lastwordonnothing.com/2012/02/09/better-living-through-electrochemistry/ TDCS].&lt;br /&gt;
&lt;br /&gt;
[[Category:Neuro]]&lt;/div&gt;</summary>
		<author><name>Judas</name></author>
	</entry>
	<entry>
		<id>https://replica.wiki.extremist.software/index.php?title=TDCS&amp;diff=27864</id>
		<title>TDCS</title>
		<link rel="alternate" type="text/html" href="https://replica.wiki.extremist.software/index.php?title=TDCS&amp;diff=27864"/>
		<updated>2012-10-25T08:47:39Z</updated>

		<summary type="html">&lt;p&gt;Judas: adding reddit tdcs sub&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;This is a page skeleton for some new projects we&#039;re going to document here! Feel free to fill shit in. --[[User:Hurtstotouchfire|Hurtstotouchfire]] 21:16, 7 May 2012 (UTC)&lt;br /&gt;
&lt;br /&gt;
==Transcranial Direct Current Stimulation==&lt;br /&gt;
[http://en.wikipedia.org/wiki/Transcranial_direct-current_stimulation Wikipedia, bitches]. For the record, the acronyms tDCS and TDCS are both in use in academia, and I think the former is stupid because they&#039;re just trying to be cool like iPhones and fMRI. The word transcranial is obviously abbreviated, and when we abbreviate words in an acronym, we capitalize them. So if you move this page to tDCS, I will move it back. --[[User:Hurtstotouchfire|Hurtstotouchfire]] 01:14, 12 May 2012 (UTC)&lt;br /&gt;
&lt;br /&gt;
===Academic publications===&lt;br /&gt;
&lt;br /&gt;
The best collection of academic study abstracts is [http://dl.dropbox.com/u/27418725/tDCS%20Abstracts%20-%20July%202011.pdf here].&lt;br /&gt;
(note that we should snatch this and put a copy somewhere, since we have no clue who this dropbox account belongs to or how long access will stay stable. The file has credit within, so I don&#039;t think it&#039;s evil. I will try to remember to email the creator and make sure he has no issues with same) - JPW&lt;br /&gt;
&lt;br /&gt;
There are quite a few other abstracts from more recent work that aren&#039;t included here, including the stuff from the most recent big neuro yearly powwow in DC. (Kelly, do you still have the links to those papers from the military guys at Wright-Patterson?) - JPW&lt;br /&gt;
:I have no crapping idea. --[[User:Hurtstotouchfire|Hurtstotouchfire]] 01:14, 12 May 2012 (UTC)&lt;br /&gt;
&lt;br /&gt;
===Anecdotes===&lt;br /&gt;
[Reddit TDCS subreddit[http://www.reddit.com/r/TDCS]] &lt;br /&gt;
Note that this source of information is wildly inconsistent. While a few people there are fairly well educated on the subject, a huge amount of outright misinformation lives and breeds there.   judas 08:47, 25 October 2012 (UTC)&lt;br /&gt;
&lt;br /&gt;
==Spec==&lt;br /&gt;
&lt;br /&gt;
The basic circuit for TDCS is ridiculously simple. We are creating a 2ma DC current and running it through 2 inch square or round electrodes that are then connected to the human body. There are various configurations that can be used to place the pads, but the most common is placing the active electrode over the area of the skull corresponding to the brain region to be effected and the other electrode, called the return electrode, is placed on the opposite shoulder. Using the anode, or positive electrode, over the brain will stimulate the target region. The cathode, or negative electrode, will retard the brain region. A standard simulation time in most research is 20 minute sessions. The effect, depending on the type of stimulation and region seems to last up to an hour after the stimulation is removed. Again, depending on the type and location of the stimulation, repeated exposure daily for up to 9 sessions can cause the effects to persist for 30 days or longer in depression studies.&lt;br /&gt;
&lt;br /&gt;
The simplest working circuit for this is a pair of 9v batteries in series, an LM334 current limiter and a fixed resistor across the LM334 reference and output to set the 2ma limit. A better circuit involves replacing the fixed resistor with a 200 ohm pot and adding an ammeter anywhere in series. One of the better designs of this nature is located [http://imgur.com/a/CrzTG here]. Although the fuse in the circuit is of unlikely utility in reality.&lt;br /&gt;
&lt;br /&gt;
A fairly simple, slightly unsafe and highly voltage limited arduino project that is somewhat clever is located [http://sourceforge.net/p/openbrainstim/wiki/Hardware/ here].&lt;br /&gt;
&lt;br /&gt;
The cadillac of designs here would probably look something like an arduino controlling a SPI variable resistor connected to an LM334 for current control, another LM334 with a fixed resistor to provide failure protection (a fuse is going to blow too slowly and fuses that small are expensive and difficult to source), a shunt ammeter connected back to the Arduino and a display/input to allow the user to set different times, current levels, sham stimulation and so on. Also we would want to put a boost transformer on the battery supply in order to boost the output voltage being used. Discussion of why we want to up the voltage here will happen in the section on electrodes.&lt;br /&gt;
&lt;br /&gt;
(need to add a long discussion about electrodes here, since there is more complexity in the electrodes than the circuit itself)&lt;br /&gt;
&lt;br /&gt;
==Other Resources==&lt;br /&gt;
*link to that great website with the videos.&lt;br /&gt;
*anyone else have spec online?&lt;br /&gt;
* Journalist becomes a hardened killing machine on [http://www.lastwordonnothing.com/2012/02/09/better-living-through-electrochemistry/ TDCS].&lt;br /&gt;
&lt;br /&gt;
[[Category:Neuro]]&lt;/div&gt;</summary>
		<author><name>Judas</name></author>
	</entry>
	<entry>
		<id>https://replica.wiki.extremist.software/index.php?title=TDCS&amp;diff=25488</id>
		<title>TDCS</title>
		<link rel="alternate" type="text/html" href="https://replica.wiki.extremist.software/index.php?title=TDCS&amp;diff=25488"/>
		<updated>2012-05-13T23:26:05Z</updated>

		<summary type="html">&lt;p&gt;Judas: /* Spec */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;This is a page skeleton for some new projects we&#039;re going to document here! Feel free to fill shit in. --[[User:Hurtstotouchfire|Hurtstotouchfire]] 21:16, 7 May 2012 (UTC)&lt;br /&gt;
&lt;br /&gt;
==Transcranial Direct Current Stimulation==&lt;br /&gt;
[http://en.wikipedia.org/wiki/Transcranial_direct-current_stimulation Wikipedia, bitches]. For the record, the acronyms tDCS and TDCS are both in use in academia, and I think the former is stupid because they&#039;re just trying to be cool like iPhones and fMRI. The word transcranial is obviously abbreviated, and when we abbreviate words in an acronym, we capitalize them. So if you move this page to tDCS, I will move it back. --[[User:Hurtstotouchfire|Hurtstotouchfire]] 01:14, 12 May 2012 (UTC)&lt;br /&gt;
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===Academic publications===&lt;br /&gt;
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The best collection of academic study abstracts is [http://dl.dropbox.com/u/27418725/tDCS%20Abstracts%20-%20July%202011.pdf here].&lt;br /&gt;
(note that we should snatch this and put a copy somewhere, since we have no clue who this dropbox account belongs to or how long access will stay stable. The file has credit within, so I don&#039;t think it&#039;s evil. I will try to remember to email the creator and make sure he has no issues with same) - JPW&lt;br /&gt;
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There are quite a few other abstracts from more recent work that aren&#039;t included here, including the stuff from the most recent big neuro yearly powwow in DC. (Kelly, do you still have the links to those papers from the military guys at Wright-Patterson?) - JPW&lt;br /&gt;
:I have no crapping idea. --[[User:Hurtstotouchfire|Hurtstotouchfire]] 01:14, 12 May 2012 (UTC)&lt;br /&gt;
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===Anecdotes===&lt;br /&gt;
*link to reddit thread here.&lt;br /&gt;
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==Spec==&lt;br /&gt;
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The basic circuit for TDCS is ridiculously simple. We are creating a 2ma DC current and running it through 2 inch square or round electrodes that are then connected to the human body. There are various configurations that can be used to place the pads, but the most common is placing the active electrode over the area of the skull corresponding to the brain region to be effected and the other electrode, called the return electrode, is placed on the opposite shoulder. Using the anode, or positive electrode, over the brain will stimulate the target region. The cathode, or negative electrode, will retard the brain region. A standard simulation time in most research is 20 minute sessions. The effect, depending on the type of stimulation and region seems to last up to an hour after the stimulation is removed. Again, depending on the type and location of the stimulation, repeated exposure daily for up to 9 sessions can cause the effects to persist for 30 days or longer in depression studies.&lt;br /&gt;
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The simplest working circuit for this is a pair of 9v batteries in series, an LM334 current limiter and a fixed resistor across the LM334 reference and output to set the 2ma limit. A better circuit involves replacing the fixed resistor with a 200 ohm pot and adding an ammeter anywhere in series. One of the better designs of this nature is located [http://imgur.com/a/CrzTG here]. Although the fuse in the circuit is of unlikely utility in reality.&lt;br /&gt;
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A fairly simple, slightly unsafe and highly voltage limited arduino project that is somewhat clever is located [http://sourceforge.net/p/openbrainstim/wiki/Hardware/ here].&lt;br /&gt;
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The cadillac of designs here would probably look something like an arduino controlling a SPI variable resistor connected to an LM334 for current control, another LM334 with a fixed resistor to provide failure protection (a fuse is going to blow too slowly and fuses that small are expensive and difficult to source), a shunt ammeter connected back to the Arduino and a display/input to allow the user to set different times, current levels, sham stimulation and so on. Also we would want to put a boost transformer on the battery supply in order to boost the output voltage being used. Discussion of why we want to up the voltage here will happen in the section on electrodes.&lt;br /&gt;
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(need to add a long discussion about electrodes here, since there is more complexity in the electrodes than the circuit itself)&lt;br /&gt;
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==Other Resources==&lt;br /&gt;
*link to that great website with the videos.&lt;br /&gt;
*anyone else have spec online?&lt;br /&gt;
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[[Category:Neuro]]&lt;/div&gt;</summary>
		<author><name>Judas</name></author>
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