Psychtoolbox>Datapixx.{mex*} subfunction

Datapixx(‘EnableVideoScanningBacklight’);

The VIEWPixx includes an LED backlight which can be scanned in synchrony with
LCD pixel updates. The scanning backlight reduces visual artifacts caused by the
LCD pixel rise and fall times.

###See also: DisableVideoScanningBacklight, SetVideoBacklightIntensity