Changes

[[File:LabMonitorBlur.PNG|thumbnail|full persistence mode shows a steady image]]

[[File:LabMonitorBlur.PNG|thumbnail|full persistence mode shows a steady image]]

[[File:LabMonitorNoBlur.PNG|thumbnail|low persistence mode ('blur reduction') shows a pulsed image]]

[[File:LabMonitorNoBlur.PNG|thumbnail|low persistence mode ('blur reduction') shows a pulsed image]]

By default the Benq XL2420Z runs on 120 Hz mode. This means that the minimum time that a stimulus is shown is 8.3 ms. The monitor menu, reachable with the touch buttons on the right side of the monitor has a ''blur reduction'' setting. This changes the backlighting of the LCD screen in such a way that it is lighted only a quarter of the time. A stimulus present on the screen for one frame will now be visible for only 2ms.  

By default the Benq XL2420Z is in 120 Hz mode. This means that the minimum time that a stimulus is shown is 8.3 ms. The monitor menu, reachable with the touch buttons on the right side of the monitor has a ''blur reduction'' setting. This changes the backlighting of the LCD screen in such a way that it is lighted only a quarter of the time. A stimulus present on the screen for one frame will now be visible for only 2ms.  

This setting is useful when the participant is moving with respect to the screen or is watching a moving object on the screen. The perceived blur will be reduced with 75%.

This setting is useful when the participant is moving with respect to the screen or is watching a moving object on the screen. The perceived blur will be reduced with 75%.