Differences

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--- kpnl:activetwo:dio [2015/03/28 12:42] – created admin
+++ kpnl:activetwo:dio [2015/03/28 12:53] (current) – [Software] admin
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+====== Acquiring Digital Codes ======
+It is critical that we acquire stimulus-locked digital codes so that we can bin the data according to stimulus type during analysis. This is also essential for creating event-related averages of psychophysiological data (e.g. creating ERPs from EEG data) as it gives us the precise onset time of each stimulus. Below is a description of the hardware, software, and steps necessary for sending and acquiring such codes with PsychoPy and the BioSemi ActiveTwo system.
 ===== Hardware =====
   * [[http://labjack.com/u3|LabJack U3 DAQ device]]
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     * This breakout board (aka terminal board or terminal block) gives us an easy way of wiring the output from the LabJack U3 to the ribbon cable.
   * [[http://www.biosemi.com/receiver.htm|ActiveTwo USB receiver I/O]]
 <WRAP center round box 80%>
-{{ :kpnl:biopac:labjack.png?350 |}}
+{{ :kpnl:activetwo:labjack.png?0x350 |}}
   - USB from stimulus presentation computer
   - 8-bit digital output from I/O lines FIO0-FIO7.
     - A separate wire connects each line to the breakout board.
-  - Wires are connected to screw terminals on the breakout board. Each terminal is connected to a single pin of the male/female DB-25 connectors.
+  - Wires are connected to screw terminals on the breakout board. Each terminal is connected to a single pin of the female DB-37 connector.
-    - FIO0-FIO7 should be wired to terminals 2-9 of the breakout board.
+    - FIO0-FIO7 should be wired to terminals 1-8 of the breakout board.
-    - The ground should be wired to terminal 18 of the breakout board.
+    - The ground should be wired to terminals 9-16 and terminal 37 of the breakout board.
-  - A 25-pin ribbon cable connects the breakout board to the MP150
+  - A 37-pin ribbon cable connects the breakout board to the ActiveTwo USB receiver.
 </WRAP>
+===== Software =====
+See [[:kpnl:psychopy#Sending digital event codes|here]] for information regarding sending event codes from PsychoPy.