Black flash when video starts playing (case 2708)

[aschum]

Changing the background colour in the Windows Media Player helps to make the 'flash' less dramatic. However, a discontinuation is still visible between the previous display and the start of the video.

[jarvis24]

Is the remaining break black?

[varia]

Does anyone know what the flash signifies? Is the flash the start of the trial as recorded by DirectRT, or is there some lag between the start of the trial and the black flash?

[jason_reed]

This could be the normal process of DirectRT clearing the stimuli from one trial and preparing the stimuli for the following trial; it happens whenever DirectRT moves from one row of the .csv input file to the next.