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I want to make an 'SSVEP' flickering lines on the monitor using PsychToolbox.

By the way, when I made a 6Hz-flickering line, it sometimes disappeared: I guess there is some conflict between 6Hz-flickering stimulus presentation and the monitor refresh rate (60Hz).

How can I solve this problem? If you could provide the code, it would be most appreciated.

Unheilig
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Sejik Park
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1 Answers1

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In principle, you should wait for "vsync" (just before displaying a new 60-Hz frame), and then "flip" to the other (already filled) screen buffer.

Martin Ebner
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