I am a student working on a project which deals with Steady State Visually-Evoked Potentials (SSVEP) Stimuator. Does anybody know where can I find stimuli (checkerboard or single graphic) as a video file? It's very difficult to find these files on the Internet. I am not allowed to use videos from youtube.

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    $\begingroup$ What is SSVEP and why can't you create the stimuli yourself? $\endgroup$ – Seanny123 Apr 21 '15 at 14:24
  • $\begingroup$ steady state evoke potentials. For evoke this potentils you need to see a special stimuli like a flickering checkerboard or single graphics. Does anybody know where can I find them? $\endgroup$ – check Apr 21 '15 at 14:33
  • $\begingroup$ What system are you using? For example, the people from Espion (a widely applied ERG/VEP system) are very kind folks that are always more than willing to help out (needless to say, as long as you are using their system :-) $\endgroup$ – AliceD Apr 22 '15 at 1:20

Researchers are often willing to share their stimuli. If you know of a paper that uses the same kind of stimuli that you want to use, you could try emailing the authors. A friendly request with a brief explanation of why you want the stimuli usually works.

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    $\begingroup$ I disagree. It's certainly not the ideal answer to the question but it is an answer. Contacting people who have used the stimuli before is a really common way to solve exactly the problem that the question poses (how do I find stimuli that aren't readily available on the web?). $\endgroup$ – Josh de Leeuw Apr 22 '15 at 2:27
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    $\begingroup$ I agree with @Josh here. Cognitive scientists frequently don't host these anywhere, so telling the author to use email is just instructing them on common practice. $\endgroup$ – Christian Hummeluhr Apr 22 '15 at 10:47

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