Tohoku University Cognitive Neuroscience Application Center

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Visual Stimulus Monitor

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When using visual stimuli in fMRI, the monitor located inside the MRI room is used to present the stimuli.
The subject views the monitor through the head coil mounting mirror from within the MRI gantry.
Therefore, the monitor typically shows a horizontally flipped image.

Setting up in the Imaging Room
No specific setup is required for the monitor.
The stimulus presentation monitor does not have an ON/OFF switch.
If a signal is sent, it will reflect on the monitor.
If the signal stops, the monitor will automatically enter sleep mode.

Detail
Eyes ←→ Mirror: 12cm 
Mirror ←→ Picture: 190cm 
Picture Horizontal × Vertical (Inner): 93cm × 52cm 
Picture Horizontal × Vertical (Outer): 100cm × 60cm

Angle of view 
13 degrees horizontal 
7.3 degrees vertical

Setting up in the Control Room

Visual stimuli are presented using a stimulus presentation PC located in the operation room or a PC brought in.

When using the stimuli PC in the Control Room
Select [1] on the input switcher.

When using a Personal Laptop
Connect the HDMI cable.
Select [2] on the input switcher.

Monitor Reversal Device
Power is always on (not turned off at the end of the experiment)
By default, the image is horizontally flipped.
It is generally not necessary to adjust the reversal device, but it can be switched to non-reversed mode if needed.
Profile 1: Non-reversed
Profile 2: Horizontally reversed (default)

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