Aphantasia

>>9130382
>visualize images
But images are already visual, no? They shouldn't require any specific effort to be visualized. In order to visualize visual stuff, you effectively should have no graphic memory. Strange how you can type if you don't know what letters look like.

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>>9130382
This would explain why retards can't grasp basic geometry or linear algebra.

>>9130397
It means that you know how they are but cannot visualize them in your head, only when you are seeing them atm.

For example, I have a lot of trouble to explain a course from A to B that I already know from my memories, but when I'm going from A to B, when I arrive at intersection or things, I know where I have to go.

I read somewhere that this, maybe, was a problem from some specific neurons that retain the images, but don't allow to visualize them, like a connection problem.

>>9130477
That may be it. Although I have no real problem with that, I have difficulties by plot a graph by hand of a specific function, or to visualize how a movement behaves if I don't do it by hand

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So you can't even visualize naked women? Sounds quite shitty life desu senpai.

I don't have aphantasia, but I tend to favor my other cognitive abilities over mental visualization. For example, I have excellent language instinct, and thus, for example, I played chess for a long time using solely logical statements to guide my thinking. It's only recently that I've practiced to keep the chess board visually in my mind, and it sure is more effective way to calculate variations.