Differences

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--- tools:switchtask [2023/11/30 14:44] – [Switch Task (MMY4, SPA)] will
+++ tools:switchtask [2026/08/20 09:37] (current) – [Practice Block] will
@@ Line 1: / Line 1: @@
 ====== Switch Task (MMY4, SPA) ======
-also known as  ''nBMSI''  n-Back Multi-Source Interference
+Also known as  ''nBMSI''  n-Back Multi-Source Interference. Original used [[tools:mmy4:switch|MMY4]] but with 3rd n-back trial type.
+Code shared publicly at https://github.com/labneurocogdevel/MMY4 written in [[:tools:matlab]] with [[:tools:psychtoolbox]] and adapted for EEG with [[:tools:psycyhopy]]/python
+Bart's 2016 WPIC poster on the task: {{ :tools:larsen_wpic_2016.pdf |Brain state expression and cognitive flexibility in adolescence and young-adulthood}}
+===== MR =====
+See [[:tools:switchtask:mr]]
+===== Use =====
+On the behavioral task computer, open Matlab ((as of 2023-11-30 this is still Matlab2015 on 32bit windows)) and run ''nBMSI LUNAID RUNTYPE''.
+''LUNAID'' should be the participants 5 digit lunaid and ''RUNTYPE'' is ''green'', ''red'', or ''in/cog1'' to ''in/cog6''
+The desktop icon will launch matlab in the correct directory. Launching matlab is slow
+{{:tools:pasted:20231130-153548.png}}
+{{:tools:pasted:20231130-153955.png}}
+Practice for lunaid ''12345'' looks like
+<code>
+cd C:\Users\localadmin\Desktop\SPASwitch_Cog_Inf
+nBMSI 12345 green practice
+nBMSI 12345 red practice
+nBMSI 12345 in/cog1 practice
+</code>
+and actually running like
+<code>
+cd C:\Users\localadmin\Desktop\SPASwitch_Cog_Inf
+nBMSI 12345 green
+nBMSI 12345 red
+nBMSI 12345 in/cog1
+nBMSI 12345 in/cog2
+nBMSI 12345 in/cog3
+nBMSI 12345 in/cog4
+nBMSI 12345 in/cog5
+nBMSI 12345 in/cog6
+</code>
+In the matlab command window, to save time and keep inputs consistent look to keyboard shortcuts:
+  * ''up arrow''key to pull previously run commands.
+  * ''ctrl+left arrow'' and ''ctrl+right arrow'' move the input text cursor by word.
+  * ''Shift+ctrl+left'' to highlight a word (and type over it to replace)
+==== Practice Block ====
+The practice block ends when enough correct responses are registered in a row. The [[https://github.com/LabNeuroCogDevel/MMY4/blob/master/private/getSettings.m#L231|threshold setting]] is different for block types: 3 for pure blocks, <del>5</del> 7 for mix.
+On 2026-08-18, the number of correct trials to quit the practice mix block was increased from 5 to 7 after noticing a randomly assigned first cog block of 5 trials could result in a participant never seeing a switch.
+==== Early Quit ====
+  * use the ''Escape'' key to quit early.
+  * if something goes very wrong: ''Alt+Tab'' then ''Ctrl+c'' then ''sca''
+    - Hold ''Alt'' and tap ''Tab'' until the matlab icon is selected
+    - Hold ''Control'' and tap ''c'' (''Ctrl+c'').
+    - type (blindly) ''sca'' and then hit ''enter''
 ===== Trouble shooting =====
@@ Line 12: / Line 73: @@
 To fix, ''cd'' to the correct directory
 <code>
-cd C:\Users\localadmin\Desktop\SPASwitch_Cog_Inf\private
+cd C:\Users\localadmin\Desktop\SPASwitch_Cog_Inf
 </code>