as u line up ur thumb with an object in the distance and see ur thumb "jump" compared with the object, what did u do and what baseline did u use?
Can someone please explain this to me more clearly, thanks
nevermind wrong question, sorry, Ijust realized that I was on the wrong page
this was the only wrong one though
u can delete this if you want
Certainly! The phenomenon you described is known as the thumb-jump illusion, also referred to as the "thumb index disparity" or "thumb alignment effect."
To perform this experiment, you can follow these steps:
1. Extend your arm fully, keeping it straight.
2. Select an object in the distance, such as a tree or a building.
3. Close one eye, which will help with focus and depth perception.
4. Align your thumb with the chosen object in such a way that your thumb appears to be vertically stacked on top of the object.
5. Now, shift your focus between your thumb and the object while maintaining alignment.
As you shift your focus between them, you should notice that your thumb appears to shift its position in relation to the object. It may seem to jump sideways or change positions compared to the object.
This illusion occurs due to the baseline or reference point we use to judge distances. In this case, our brain uses the position of our thumb itself as a reference point. When we align our thumb with a distant object, our brain assumes both are at the same depth. However, objects closer to us require more convergence of our eyes, while objects further away require less convergence.
As a result, as our focus shifts between our thumb (closer) and the object (further), our eyes adjust their convergence. This adjustment causes our thumb to appear to "jump" in relation to the object, even though neither object has physically moved.
It's important to note that this illusion works best when the object is in the distance and your thumb is held at arm's length. Additionally, the illusion may vary slightly from person to person, depending on individual eye coordination and depth perception.
I hope this explanation helps clarify the thumb-jump illusion for you!