Embed Youtube video in the Inquisit Web in Windows and Mac

It is necessary to use online video source when you want to present long video clips in an Inquisit Web script. This is because the Inquisit Web server only provides 60MB space for you, although we all pay them a big amount of money, such a small storage space can only host a few short… Continue reading Embed Youtube video in the Inquisit Web in Windows and Mac

Change the space between paragraphs in Qualtrics

The space between paragraphs in the Qualtrics might be too large, how to reduce the space?  One solution is to add JS code in the “Question JavaScript” to change the padding size or margin size before and after one paragraph. Note, Qualtrics appears to set up some kind of minimum space between paragraphs so even… Continue reading Change the space between paragraphs in Qualtrics

Corrected Vision May Still Bias the Gabor Patch Detection

As said in the title, participants with corrected vision (wearing glass or contact lens) may still have distorted vision due to whatever reason, especially in Gabor patch detection task. This question comes from my personal experience, I always feel that the vertical Gabor patch is brighter than horizontal ones, and is easier to detect. Below… Continue reading Corrected Vision May Still Bias the Gabor Patch Detection

Keyboard Calibration Using the Damn Laser

Almost no one care about how precise/reliable the keyboard pressing is, here, we built a damn cool equipment to examine this question. Broadly speaking, the time precision is good, mean variance is less than 0.2 ms. Well, let me find the raw data first, since it’s been done for a long time. Environment: MATLAB with… Continue reading Keyboard Calibration Using the Damn Laser