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project:brain_hacking:tdcs [2013/04/08 19:10]
ata
project:brain_hacking:tdcs [2013/04/29 22:05] (current)
ata F3 locator (program)
Line 987: Line 987:
     --------) rebuild device to 18V version ​     --------) rebuild device to 18V version ​
  
 +----
  
 +9.4
 +  *rebuild to 18V version ​
 +  *too strong abrasion by nuprep -) increased pain in stimulation (damaged skin by abarasion)
 +  * current desity test up to 620uA/cm2
 +    * its posible stimulate with 620uA/cm2 without any fealing but result are not stable and is needed electrode improvements ​
 +    * better result for EEG gel than for saline soaked sponge ​
 +    * saline soaked sponge : not even saline distribution ? , to dry ? ---) more tests 
  
 +to do:
 +    *rebuild electrodes from 3,14cm2 to 4 cm2 ( to reduce current density , new info : soterix use 4cm2 ,easier counting of current density )  ​
 +    *lower height of elastic ring around electrode for EEG gel electrodes ( too much consumption of EEG gel ) 
 +    *sponge electrodes : Filling tube for guaranteed the same moisture for whole stimulation
 +      *sringe ​
 +      *gravity autofilling (3cm filling tube)
 +       *head movement caused spillage ? , end of the tube ? 
 +      *improve elastic ring (reduce spillage of saline) ​   ​
 +    * electrode cap for M1/SO 35cm2 
 +      *fixation to holder
 +      *faster shape adjusting ​
 +    * electrode cap for 4X1 M1 HD-tDCS  ​
 +      *EEG gel electrodes adhesion : usage witout cap ?
 +    * EEG electrode cap for 4X1 M1 HD-tDCS ​
 +      *hair problem in EEG cap --) find something to move away hair
 +      *holder allows one by one electrodes adding (easier to move away hair than in version where all electrodes fimly fixed to 4x1 holder)
 +    * TESTS painless/​sesationless current desities for all types of electrodes , alcohol Y/N ,abrasion Y/N , alcohol + abrasion ​
 +      * arm or leg , forehead, hair area   
 +
 +    *few interesting designs of caps
 + ​{{http://​biomedicaloptics.spiedigitallibrary.org/​data/​Journals/​BIOMEDO/​926250/​JBO_18_2_027005_f001.png}}
 +
 +[[http://​biomedicaloptics.spiedigitallibrary.org/​article.aspx?​articleid=1567852]]
 + 
 +{{ http://​www.wired.com/​images_blogs/​gadgetlab/​2011/​03/​3-22-11-mynd-eeg-headset.jpg }}
 +
 +{{http://​gearmedia.ign.com/​gear/​image/​article/​772/​772295/​gdc-2007-emotiv-systems-unveils-shocking-neural-interface-device-20070312035005901-000.jpg}}
 +
 +   * dry electrodes
 +     * HD tdcs dry electrodes are crazy idea but worth some tests like current desity without iritation and hi-frequenci pulsed TDCS (4khz)
 +       ​*comercial EEG dry electrodes ​
 +{{http://​www.gtec.at/​var/​plain_site/​storage/​images/​media/​images/​products/​g.sahara/​gsaharalongpin/​26508-1-eng-GB/​gSAHARAlongpin.jpg}}
 +
 +{{http://​beweb.ucsd.edu/​courses/​senior-design/​projects/​2010/​project_17/​electrode.jpg}}
 +
 +
 +-------
 +11.4
 + 
 +    *<​del>​rebuild electrodes from 3,14cm2 to 4 cm2 ( to reduce current density , new info : soterix use 4cm2 ,easier counting of current density ) </​del>​ **rebuild to 4,9cm2**
 +    ​
 +    *<​del>​lower height of elastic ring around electrode for EEG gel electrodes ( too much consumption of EEG gel )</​del>​ **OK (ring from tape)** ​
 +    *<​del>​sponge electrodes : Filling tube for guaranteed the same moisture for whole stimulation</​del>​ **OK**
 +           ​*<​del>​sringe</​del> ​
 +           ​*<​del>​gravity autofilling (3cm filling tube)</​del>​ **Change of design**
 +           ​*<​del>​head movement caused spillage ? , end of the tube ?</​del>​ **OK (capilar effect)**
 +           ​*<​del>​improve elastic ring (reduce spillage of saline)</​del>​ **OK** ​   ​
 +    *<​del>​electrode cap for M1/SO 35cm2</​del>​ **OK**
 +    *<​del>​fixation to holder</​del>​ **OK**
 +    *<​del>​faster shape adjusting</​del>​ **OK** ​
 +   
 +    <​del>​*electrode cap for 4X1 M1 HD-tDCS </​del> ​
 +    *<​del>​EEG gel electrodes adhesion : usage witout cap ?</​del>​ **OK**
 +      *holder allows one by one electrodes adding (easier to move away hair than in version where all electrodes fimly fixed to 4x1 holder)
 +    *<​del>​EEG electrode cap for 4X1 M1 HD-tDCS hair problem in EEG cap --) find something to move away hair</​del>​ **Hole in cap is too small to put in electrode from top**
 +    * TESTS painless/​sesationless current desities for all types of electrodes , alcohol Y/N ,abrasion Y/N , alcohol + abrasion ​
 +      * arm or leg , forehead, hair area   
 +
 +**TO DO**
 +    *elstic rings
 +    <​del>​*filling tube
 +    *elctrode holder
 +    *HD-TDCS cap</​del>​
 +    *TESTS
 +
 +-----------------
 +
 +29.4
 +**Usefull tool for locating DLPFC** ​
 +
 +An efficient and accurate new method for locating the F3 position for prefrontal TMS applications
 +
 +http://​www.ncbi.nlm.nih.gov/​pmc/​articles/​PMC2882797/​
 +
 +http://​clinicalresearcher.org/​F3/​
  
  
 **My Email** **My Email**
 ORLIN1@seznam.cz ​ ORLIN1@seznam.cz ​
 
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