Heatmaps

Here we try one simple way to start analyzing the data: show ALL lines that were drawn onto a test image. One could call it a heatmap. We don't believe this is a great method for analysis, but it's better than nothing while we try to invent better ways.

You can hover the mouse over the pictures to toggle the background on/off! (Sorry, touchscreen users...)

All lines drawn on the blank background. This blank image was shown several times, for short periods (often less than 1 minute) after each geometric image. Thus, it's likely that it contains lingering traces of every other test image. The test subject says it's hard to tell exactly how long the tracers last, since it's a gradual change, but they are probably gone in less than 1 minute.

You might be tempted to think that this image shows that the OEV occurs only inside the circle, but our test subject stresses that his entire visual field is filled, and that he simply chose to draw inside the circle during the experiment.

Our subject said that the edges of the circle were so far away that they hardly affected the OEV in the center at all. He said that the result would probably be equivivalent to test image 00 which is simply a blank space. Therefore, he only drew on this image for around 1 minute, which explains why there are so few lines.

Just like testimage_00, it's blank, but this one has a different color. Our test subject hypothesized that it will have the exact same pattern. Currently they don't look very similar, probably because we only gathered data for a short time for this image.

We find this one interesting. There is clearly a square here, or in general 4-point symmetry. Would be interesting to test the same image rotated at various angles - will we see rotational invariance or not?