[dmitrygr]

> Is there a simple test

Close your eyes and imagine a triangle. Now, quickly, what color was it? If you have an answer, you do not have aphantasia. If you have no answer, you likely have aphantasia - your mind instantiated a concept of a triangle, but until the question of color came up, it was irrelevant and was not considered

[navjack27]

Glowing lines in a black space. Color is a pale off white. It's rotated slightly in 3d space but it's a triangle.

Edit: oh yeah, I didn't close my eyes, sorry. I just thought about it as I was reading and the image flashed for an immeasurable time unit multiple times each time I gave it a bit of thought.

It's extremely easy for me to just, almost like daydreaming, to have my vision darken and have my minds eye take over for microseconds for me to picture things. Guess like built in AR.

My inner voice is also incredibly controllable and more than just a voice. It's just a playback device at this point. Whatever I want i can make it audible.

[TheAceOfHearts]

Not a good example, IMO. A triangle is defined as 3 points with 3 lines connecting each consecutive point. A better example would be: think of Tony the Tiger, now what colors are his skin, stripes, and bandana? But that's also not perfect because people are along a spectrum in the amount of detail they're able to see.

[sdiupIGPWEfh]

Weird. If asked to visualize a triangle, I see the "glowing lines in a black space." If I try to visualize a red/green/blue triangle, I can only briefly maintain the image before it fades away into the default white outline in the void.

However, when asked to think of Tony the Tiger and his stripes, not only do I perceive orange fur and red bandana, but I'm struck by just how freaking blue his nose is and it is uncomfortably persistent.

[jimmygrapes]

I can't see Tony's skin since it's covered by fur unless you count the "toe beans" and nose

[kzrdude]

I can't even bring up a triangle until I made it concrete. I imagined I had cut one out in plywood.