Differences

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--- kpnl:biopac:dio [2015/02/15 13:49] – [Acquiring] admin
+++ kpnl:biopac:dio [2015/05/16 10:20] (current) – [Acquiring Digital Codes] admin
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 ====== Acquiring Digital Codes ======
-It is critical that we acquiring 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 the 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 using the Biopac MP150.
+It is critical that we acquire time-locked digital codes upon presentation of each stimulus. These codes are used to bin the data according to stimulus type during analysis. This is also essential for creating event-related averages of the 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 using the Biopac MP150.
 ===== Hardware =====
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   * [[http://www.winfordeng.com/products/brk25mf.php|Winford DB25 Dual Connector Breakout Board]]
     * 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.biopac.com/isolated-digital-interface-printer-port|Biopac I/O]]
 <WRAP center round box 80%>
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   - A 25-pin ribbon cable connects the breakout board to the MP150
 </WRAP>
 ===== Software =====
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 The LabJack U3 can be controlled via several different programs and languages. We use the [[http://labjack.com/support/labjackpython|LabJack Python module]] to send codes via [[http://www.psychopy.org/|PsychoPy]].
-To date, I have only had success controlling the LabJack from a computer running the Mavericks OS (not Yosemite). The computer should have [[https://developer.apple.com/xcode/|Xcode]] (including the **Command Line Tools**) installed. The libusb package should also be installed (see [[http://labjack.com/support/linux-and-mac-os-x-drivers|here]] for details). Finally, the [[http://labjack.com/support/linux-and-mac-os-x-drivers|LabJack exodriver]] and [[http://labjack.com/support/labjackpython|LabJack Python module]] should be installed.
+The computer (Mac) should have [[https://developer.apple.com/xcode/|Xcode]] (including the **Command Line Tools**) installed. The libusb package should also be installed (see [[http://labjack.com/support/linux-and-mac-os-x-drivers|here]] for details). Finally, the [[http://labjack.com/support/linux-and-mac-os-x-drivers|LabJack exodriver]] and [[http://labjack.com/support/labjackpython|LabJack Python module]] should be installed.
 Below is sample code for sending digital codes.  Additional details can be found [[http://labjack.com/support/labjackpython/low-level|here]] and [[http://labjack.com/support/u3/users-guide/5.2.5.10|here]].