Differences

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--- tools:loefeeg [2026/08/19 09:40] – [EEG at Loeffler] will
+++ tools:loefeeg [2026/09/25 16:27] (current) – will
@@ Line 42: / Line 42: @@
   * 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 =====