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Survey: Spinning Clockwise or Counter-Clockwise?

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is to scroll the web page till her top half is out of view. I can then watch her legs and get the rotation to change. While I have her going CW I can scroll the page till she is all in site if I don't blink she'll stay CW but as soon as I blink she is back on her ccw rotation floating before my eyes.
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JJMack
 
make it dance back and forth.

I saw it cw at first but when reading the answer page I saw in my side
vision it going ccw. I can switch the direction on demand now by
looking to left and back right on the image. CW is easiest to see.

I don't think the right/left brain stuff is any more valid then astrology.

--
--
'If we choose being kind over being right,
we will be right every time.'

'Emphasize the best and minimize the rest'
 
For me, its a matter of reference. If I think of the direction as looking down from above the head, It is moving Clockwise. If I think of looking up from the feet, it is counter clockwise, so it doesn't ever change direction

or I just can't see things more than one way.
I have trouble with those hidden image things anyway.
 
clearly
 
after messing around a lot zoom in out etc. and moving the image up and down it changed from clockwise to c clockwise but only for a very brief amount of time, and then back to CW.

I suspect that motion adaptation will produce reverse motion (which you will only see under certain optimal conditions) which in this case would be CCW. Motion adaptation is a well known perceptual phenom which is sometimes demonstrated by looking at a waterfall. If you then look at a blank wall you will see the water falling upward.

The explanation is that the motion detecting neural mechanism adapt (or fatigue) in one direction and therefore the net output will be reverse motion perception (or something like that.

Dan
 
Ok, I read the article but I am rather skeptical of the explanation (having studied visual perception quite a bit) because the left vs right brain business has been blown out of proportion by popular media. I would be very interested in reading more about this illusion by the authors themselves.

I was able to get it to switch pretty effectively on the article page by moving my head from L to R or vice versa.

My prior explanation of motion adaptation is not good because the reversal is does not require looking at a blank page, so it is probably wrong.

There are 3 Key Factors, I can think of, that make this an ambiguous figure:

1 No background texture to help stabilize the perception.

2 Lighting is flat (so there is no shading on the figure)

3 No interposition

When one leg crosses the other there is no blocking of the part of the figure that would normally be hidden, hence no interposition cue which is normally very important for knowing what object is in front of another one.

Dan

You can make a very compelling illusion for yourself which also shows ambiguous directional motion.

Take some wire, pipe cleaners or some other wire that you can easily bend, and make a wire-frame cube about 3-4 inches squre on each side. Get some glow in the dark pain from a hobby store. This type of paint glows in the dark after it "charges" up by exposure to light. Don't worry this is not radioactive.

Put it on a turntable (an old record player works great) and stare at it in the dark. Not only will you be able to see it reverse rotation but also tumble, and reverse it's shape. It has ambigous shape (like the staircase illusion you find in perception books).

It's a lot of fun and everyone gets it.

Dan
 
...I have been trying every trick mentioned for getting her to turn CW, for 2 days! She still only turns CCW for me. I'm starting to wonder if I even have a right side to my brain. :-)

--
Andy
FCAS Member #120
http://lightscapeimaging.com
 
AJohn said:
...I have been trying every trick mentioned for getting her to turn
CW, for 2 days! She still only turns CCW for me. I'm starting to
wonder if I even have a right side to my brain. :-)

--
Andy
FCAS Member #120
http://lightscapeimaging.com
Click to expand...
Try looking at the bottom shadow.
Look higher to see her left heel on the ground.

Her left heel lifts up off the ground as her right leg swings around her clockwise.

If you try to literally see what is happening as you think about it, it may help you to see it.

Funny how other people, that may be left handed, are stuck with it going the other way. They die to see what you are seeing... :)

Mike
http://www.mikedubu.com
 
...She turned CW for about 2 seconds for me. :-) I tried again, but no go the second time. The thing is, I don't know exactly what I did. I was trying what you said but I think it only worked when my mind wandered. Since my mind wanders all the time, you'd think it would be easier. Anyway, I'm relieved. At least the right side is there. :-)

--
Andy
FCAS Member #120
http://lightscapeimaging.com
 
Mike Warren said:
Funny how other people, that may be left handed, are stuck with it
going the other way. They die to see what you are seeing... :)
Click to expand...
I am right handed, and have a fair split of what the DT says are right/left brain traits, but I only see her rotating clockwise no matter how hard I look.
 
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