tag:blogger.com,1999:blog-13710336.post1162622636483332378..comments2022-09-18T11:14:36.876-04:00Comments on Neurochannels: Consciousness (7): More Ambiguous FiguresEric Thomsonhttp://www.blogger.com/profile/06847717704454032165noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-13710336.post-66665772597756641772009-10-15T08:57:28.307-04:002009-10-15T08:57:28.307-04:00Anon: this was the best example I could find, the ...Anon: this was the best example I could find, the most "pure." If you focus on truly fusing the crosshairs, and just hold it for a while, it should happen. Or perhaps you have a mutant visual system. :)<br /><br />It is frankly pretty common to have an impure rivalry, and I will have a lot more to say about this, as the dynamics of the alternation are a lot more complicated than I Eric Thomsonhttps://www.blogger.com/profile/06847717704454032165noreply@blogger.comtag:blogger.com,1999:blog-13710336.post-33706669103309526532009-10-15T01:53:55.870-04:002009-10-15T01:53:55.870-04:00I hadn't seen the spinning girl, very cool.
...I hadn't seen the spinning girl, very cool. <br /> <br />I tried the rivarly, but I keep seeing each image (both at the same time) or one or the other if I put my attention on one or the other. I tried for awhile--<br />Are there other images I might try?<br /><br />A good example of the motion illusion is the lighting along the strip in Vegas--<br /><br />(sonic)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-13710336.post-23055255333006765522009-09-17T16:39:46.313-04:002009-09-17T16:39:46.313-04:00Arnold: I can't get it to switch that way. It ...Arnold: I can't get it to switch that way. It is very hard for me to get her to switch without covering most of the figure.Eric Thomsonhttps://www.blogger.com/profile/06847717704454032165noreply@blogger.comtag:blogger.com,1999:blog-13710336.post-76233571898747185312009-09-17T12:19:43.774-04:002009-09-17T12:19:43.774-04:00Looking at the spinning girl, I wonder if others s...Looking at the spinning girl, I wonder if others see what I see, that whenever the far toe is fixated, the direction of spin reverses.Arnold Trehubhttp://people.umass.edu/trehub/noreply@blogger.comtag:blogger.com,1999:blog-13710336.post-91575980697417777442009-09-15T21:54:38.594-04:002009-09-15T21:54:38.594-04:00Joeyo: excellent point, I hadn't noticed these...Joeyo: excellent point, I hadn't noticed these differences at the boundaries.<br /><br />Because of that, the example in the post isn't a pure case of structure from motion. Such boundary manipulations aren't required to get the effect, and you can see a pure demo at <a href="http://www.phys.uu.nl/%7Evanee/Demos/TubeDemo/tube.html" rel="nofollow">this site</a>.Eric Thomsonhttps://www.blogger.com/profile/06847717704454032165noreply@blogger.comtag:blogger.com,1999:blog-13710336.post-47363917910958542102009-09-15T20:10:26.101-04:002009-09-15T20:10:26.101-04:00In the structure from motion example, I don't ...In the structure from motion example, I don't think the precept of the cylinder arises simply from the motion of the dots, but rather also due to the way the dots change size and shape at the edges of the figure. This presumably is to match the dynamics of surface features "going over the horizon" as the object rotates.joeyohttps://www.blogger.com/profile/11781088449143978381noreply@blogger.com