Nocturnally roving weird, purple jellydots

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Discussion Overview

The discussion revolves around a visual phenomenon related to perception, specifically referencing the Troxler effect and its implications on how we perceive colors and shapes in a visual stimulus. Participants explore the experience of observing a specific visual display and the effects of eye movement on perception.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants describe their experiences with a visual display, noting the appearance of a green spot and how it changes with focus and eye movement.
  • One participant suggests that the lack of eye movement may contribute to the visual effects observed, proposing a connection to the Troxler effect.
  • Another participant questions the existence of the green spot, stating it appears as blank gray instead.
  • There are discussions about the color perception of the dots, with some describing them as pink rather than purple.
  • References to external resources, such as Hyperphysics and links related to the Troxler effect, are provided for further exploration.

Areas of Agreement / Disagreement

Participants express differing views on the existence of the green spot and the colors of the dots, indicating that multiple competing perspectives remain in the discussion.

Contextual Notes

Some assumptions about visual perception and the specific conditions under which the Troxler effect occurs are not fully explored, leaving certain aspects unresolved.

Gokul43201
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Whoaaa! Duuuuude! Ya shoulda, like warned people who are on acid not to go there, man.
 
Ok that's pretty crazy... Can anyone explain to me what in the hell is going on?
 
matthyaouw said:
Ok that's pretty crazy... Can anyone explain to me what in the hell is going on?
I think it's because you aren't moving your eyes. Your eyes usually move around slightly so some nerves can rest and/or your brain can construct the image. But I could be wrong. I'll ask my magic 8 ball.

It's called the Troxler effect or Troxler fading or Selective Peripheral Fading.
http://cognet.mit.edu/posters/TUCSON3/Lou.html
http://www.troxlerforum.ch/
I couldn't find much on it quickly.
 
Last edited by a moderator:
what does that have to do with purple roving nocturnal jelly--- oh, jellydots! gotcha :wink:
 
Actually, there is no green spot, just blank gray.
 
That is true.

Also, try hyperphysics for "rods and cones".
 
Hey, I've never seen that one before! Very cool.
 
If you move your eyes in a circle following the dots, you cannot see the "green" dot, they all remain "pink" (they look closer to pink than purple)
 

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