Dear all,
we plan to run some MEG studies with high-(temporal) frequency visual stimulation. We have a Windows Xp PC, equipped with a high-quality graphic card and connected both to a CRT computer and to a Panasonic projector (Panasonic PT-D7700). The projector specifics allow stimulation up to a temporal resolution of 120 Hz. However, (after setting the primary CRT monitor at 100 Hz) when we measure with the oscilloscope this parameter, it cannot reach 100 Hz, but it reveals a 60 Hz frequency rate. After contacting Panasonic we did not receive any useful feedback. Thus, I am asking if anyone faced a similar problem and consequently developed some knowledge on how to deal with it.