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Admin » EEG at Loeffler

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tools:loefeeg [2025/03/26 12:14] – willtools:loefeeg [2026/09/25 16:27] (current) – will
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   * [[:tools:loefeeg:bucket]]   * [[:tools:loefeeg:bucket]]
   * [[:tools:loefeeg:faraday]]   * [[:tools:loefeeg:faraday]]
 +  * [[:tools:loefeeg:eegtaskpc]]
 +  * [[:tools:loefeeg:log]] -- dates for/ history of what's gone wrong, what's been replaced
  
 ===== Battery ===== ===== Battery =====
Line 19: Line 21:
 ===== Audio ===== ===== Audio =====
  
-  * [[tools:habittask]]  ([[grants:habit]]) for reward feedback +  * Tasks 
-  * [[tools:auditorysteadystate]]  ([[grants:7t]]) passive listening to click trains +    * [[tools:habittask]]  ([[grants:habit]]) for reward feedback 
-  * Using " foam eartips" [[https://cortechsolutions.com/product-category/stimulus-delivery/stimulus-delivery-auditory/stimulus-delivery-auditory-earphones/|cortech]] (( +    * [[tools:auditorysteadystate]]  ([[grants:7t]]) passive listening to click trains 
-Alternative from [[https://www.biosemi.nl/forum/viewtopic.php?f=7&t=1022&p=3097&hilit=headphones#p3097|biosemi forums]]: [[https://www.amazon.com/TDH39-Audiometer-Earphone-Transducers-Headsets/dp/B081DVNLRM|TDH39 DD45 Audiometer Earphone Air Transducers Headsets]] ($200) +  * Hardware: Task PC -> 35mm aux -> RCA Adapter ->  [[https://shop.neurospec.com/er2-tubal-insert-ear-phones|Etymotic Research's ER-2]] -> "foam eartips" [[https://cortechsolutions.com/product-category/stimulus-delivery/stimulus-delivery-auditory/stimulus-delivery-auditory-earphones/|cortech]] (( 
-))+Alternative from [[https://www.biosemi.nl/forum/viewtopic.php?f=7&t=1022&p=3097&hilit=headphones#p3097|biosemi forums]]: [[https://www.amazon.com/TDH39-Audiometer-Earphone-Transducers-Headsets/dp/B081DVNLRM|TDH39 DD45 Audiometer Earphone Air Transducers Headsets]] ($200) connected))
     * transducer/air: loudspeaker variable timing, frequency     * transducer/air: loudspeaker variable timing, frequency
     * normal headphones would interfere with signal     * normal headphones would interfere with signal
  
 +===== Tasks =====
  
 +As of 2025-10-09, [[:grants:habit:eeg]] and  [[:grants:spa:eeg]] tasks are
 +  * [[tools:antisaccade:eeg]] (Habit & SPA, psychopy) 
 +  * [[tools:vgs]] (Habit & SPA, psychopy)
 +  * [[:tools:habittask|Reward Learning and Habituation Task]] (Habit, browser with python shim)
 +  * [[:tools:auditorysteadystate]] (Habit, psychopy)
 +  * [[:tools:rest]] (Habit, EPrime)
 +  * [[:tools:switchtask]] ''nBMSI'' (SPA, psychopy)
 ===== Timing/TTL ===== ===== Timing/TTL =====
  
   * TTL sent over parallel port from presentation computer to control unit. see [[:tools:eeg_remark]]   * TTL sent over parallel port from presentation computer to control unit. see [[:tools:eeg_remark]]
  
-===== Biosemi to LNCD Layout =====+===== EEG Cap Layouts ===== 
 +==== Layouts ====
  
 +
 +^Front                      ^ Back ^
 +|{{.:pasted:20260925-162110.png}}|{{.:pasted:20260925-162209.png}}      |
 +
 +^Habit/7T cap ^ SPA cap ^
 +|{{ :tools:habit_cap.png?direct&300 |}}| {{ :tools:spa_cap.png?direct&300 |}} |
 +
 +
 +
 +==== Habit ====
 +  * Standard BESA 64 channel layout
 +  * 6 extra channels added to cap from Pete Bachman (added as external channels and are removed from preprocessing pipeline)
 +  * Channels 65 and 66 are mastoids
 +  * use ''standard-10-5-cap385.elp'' <code=matlab>
 +eeglabpath = fileparts(which('eeglab'));
 +cap_location = fullfile(eeglabpath,'/plugins/dipfit/standard_BESA/standard-10-5-cap385.elp');
 +</code>
 +
 +==== 7T ====
 +
 +  * Standard BESA 64 channel layout (some have 128 channels)
 +  * 6 extra channels added to cap from Pete Bachman (added as external channels and are removed from preprocessing pipeline)
 +  * Channels 65 and 66 are mastoids
 +  * 64 channel layout: ''standard-10-5-cap385.elp'' <code=matlab>
 +eeglabpath = fileparts(which('eeglab'))
 +cap_location = fullfile(eeglabpath,'/plugins/dipfit/standard_BESA/standard-10-5-cap385.elp');
 +</code>
 +  * 128 channel layout: ''ChanLocMod128to64.ced'' <code=matlab>
 +correction_cap_location = hera('Projects/7TBrainMech/scripts/eeg/Shane/resources/ChanLocMod128to64.ced');</code>
 +
 +
 +==== SPA ====
 +
 +
 +  * Standard Biosemi 64 channel layout (different than Habit and 7T)
 +  * Locations can be found from Biosemi website: [[https://www.biosemi.com/headcap.htm]]
 +  * We did not get new channel labels so we are using the old channel labels from Habit/7T see MATLAB preprocessing code for fix
 +  * Currently only using 61/64 channels on new SPA cap (9/23/2026)
 +
 +
 +|Skipping cap ''FT7''                  |{{.:pasted:20260925-161720.png?x100}}|
 +|Channel ''FT8'' placed on cap ''FT10''|{{.:pasted:20260925-161800.png?x100}}|
  
 ===== Notes from Cortech Solutions ===== ===== Notes from Cortech Solutions =====