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Table of Contents
Hardware device connections at BIAC-6 3T (MR750) scanner
BIAC6 3T -- Mach computer
Mach is our primary stimulus presentation computer. It is usually connected to the monitor on the left.
Mach has the following peripheral hardware connected:
- Keyboard and mouse hard-wired connections
- First video output connected to video switch (CPU 1)
- Second monitor video output connected to video switch (CPU 2)
- Stereo sound output to audio switch boxes
- Current Design 8-button serial response device (USB)
- button box mode: “HHSC-2×4-C” response box
- button mode : “HID NAR 12345” (003)
- must check this mode if power is cycled to the interface
- Current Design 2 axis, 2 button joystick ( shared between 2 scanners )
- autoconfigure
- HID Joystick
- USB - Tethyx
- after use switch back to button box with above settings
- Current Design Trackball 2 ( shared between 2 scanners )
- autoconfigure
- HID HHSC-TRK-2 ( track 2 and comp seem to do the exact same thing )
- roll ball around to calibrate
- after use switch back to button box with above settings
- E-Prime SR box (no button box, just scanner trigger) (COM1: 19200 baud, 8 bits, no parity)
- Video switch serial cable on COM2
- Measurement Computing Analog/Digital data acquisition device (USB-1208FS, dev=0, 8 a/d chans)
- Serial cable to Donders on COM3 (e.g. ViewPoint eyetracker or Acknowledge)
- E-Prime dongle (USB)
- Scanner trigger cable connected as input to E-Prime SR box (code=16), and MeasComp analog (ADC3)
- BioPac Respiratory belt signal connected as MeasComp analog input 0 (ADC0), biopac analog ch4
- BioPac Cardiac signal connected as MeasComp analog input 1 (ADC1), biopac analog ( pulse wave ch6 )
- BioPac GSR signal connected as MeasComp analog input 2 (ADC2), biopac analog ch1
- Scanner trigger signal connected as MeasComp analog input 3 (ADC3), biopac analog ch9
- Scanner trigger is also connected to the MCC counter pin (CTR), this would show up as a number increase NOT a positive pulse
BIAC6 3T -- Donders computer
Donders is our accesory computer. It is usually connected to the monitor on the right.
Donders has the following peripheral hardware connected:
- Keyboard and mouse hard-wired
- Video output connected to video switch (CPU 3)
- Stereo sound output to audio switch boxes
- Serial cable to Mach (COM1)
- Scanner trigger cable connected as input to parallel port
- BioPac communication (RJ45?) cable
- Falcon video capture card (internal board)
- Mag Concepts eyetracker camera input (NTSC) to video capture card
- OptoAcoustics digital microphone (USB)
BIAC6 3T -- Other devices
- DVD player, video output connected to video switch (CPU 5)
- DVD player, sound connected to Audio switch (DVD - switch 3)
- Stereo sound jack for I-pod, MP3, etc connected to Audio switch (Aux - switch 4)
Video Switch Connections
HDMI Video Switcher
Source Devices
- CPU1 = Primary Display Computer (Mach), primary video output
- CPU2 = Primary Display Computer (Mach), secondary video output
- CPU3 = Secondary/Eyetracker Computer (Donders)
- CPU4 = DVD Player
- CPU5 = Spare connection
Output Devices
- OUT1 = Left Monitor
- OUT2 = Middle Monitor
- OUT3 = Right Monitor
- OUT4 = Projector
- OUT5 = Headphones
- OUT6 = 3D LCD
- OUT7 = Not connected
- OUT8 = Not connected
See also
MCC digital channel to BIOPAC digital channel mapping
MCC | BIOPAC |
---|---|
DA0 | “Trig” |
DA1 | D9 |
DA2 | D10 |
DA3 | D11 |
DA4 | D12 |
DA5 | D13 |
DA6 | D14 |
DA7 | D15 |
BIAC6 Screen Configuration
- BIAC6 is equipped with NordicNeuroLab ( NNL ) VisualSystemHD goggles for stereoscopic display
- The individual eyes of the NNL headset are hard-wired to the graphics card on the display computer and not routed through the switcher
- because of this setup, the stimulus computer appears to have 4 monitors
- monitor 1,2 are connected to the switcher and can be switched around to all the different displays at the scanner suite
- 3,4 are directly connected to the googles and can only output there
- when configuring your tasks to display, please take account of which monitor you are sending the outputs since 3,4 will always be the googles only.
One of the best ways to assure your configuration stays the same is to select a default display icon from the desktop ( ie: Clone or Extended displays )
Extended Displays will show up as 4 separate screens in the system information
Depending on your stimulus presentation software you may want to hard-code which display you are presenting your task.
For instance PsychoPy the first screen would be #0
import pyglet display = pyglet.canvas.get_display() screens = display.get_screens() screenNum = 0 #get resolution of screen 0 win_res = [screens[screenNum].width, screens[screenNum].height] #set the output to always go to screen 0 win = visual.Window(size=win_res, screen=screenNum, allowGUI=True, fullscr=True, monitor=exp_mon, units='height', color=(0.2, 0.2, 0.2)) msg1 = visual.TextStim(win, text=u"Hello world!", pos=(0,0)) #centered msg1.draw() #draw it win.flip() #put it on the screen core.wait(5) #wait 5 seconds win.close() #close it core.quit() #stop
matlab PTB the first screen would be #1 ( matlab is indexed starting at 1 instead of 0 ).
%configure the first screen is psychtoolbox screenNumber = 1; [Window,var.winrect] = Screen('OpenWindow',screenNumber,0);