Comment by case540

8 hours ago

How do you solve geometry problems. For lots of them I visualize / rotate things im my head.

Hmm I'm pretty sure I have some degree of aphantasia, because I read a lot but I never visualize what's going on (or not consciously, at least).

However, back in school when we did elementary geometry I had no problem solving everything, to the point I even qualified for the national math competitions once.

Maybe though, it's because i was drawing helper figures on paper instead of imagining them.

I have no problem with figure matching IQ style tests, as opposed to one of the sibling posters.

Edit: oh interesting, lower in the article. I have absolutely no problem with spatial navigation, on the contrary, I'm better than many people. But for example if we're retracing our steps on a mountain path I can't tell you in advance what were the landmarks to look for. I will recognize them as soon as we see them or notice we're missing any landmarks though.

Visualizing for me has always been like touching something with my eyes closed. I can't "see" the object, but I have a feeling for all the shapes and contours. You can feel which way a key is in your hand and where each ridge is without having to see it. I solve geometry problems the same way. I can't see the whole thing at once, but I can move my sense of feeling across arbitrary scenes.

  • That’s exactly how it is for me.

    I can somewhat imagine a simple square or triangle but only more like feeling it in the dark without fully “seeing” it. Anything more complex, like a pretzel is out of the question, just disappears/instantly-forgotten.

    My dreams can be very vivid, except for some where an object disappears if I focus directly on it.

    Always wondered whether this is normal, aphantasia, or something else…

Funny you should ask. In high school I was regarded as highly intelligent, I was near the top of all of my classes and widely read, with an excellent memory for facts and figures. (Though no visual memory whatsoever).

Then one day we did a IQ test in science class. I scored near the bottom of the class. All of the geometry based "what comes next" puzzles left me flummoxed. Because I couldn't visualise, I couldn't rotate images in my head to identify patterns and so many of the questions were like that.

>How do you solve geometry problems. For lots of them I visualize / rotate things im my head.

Not the other guy, but I can think about how they look without actually 'seeing' them in my mind.

I was good at mechanical drawing in college, meaning I could visualize the view of something from different sides. But, generally there was a perspective to work off of.

I don’t have aphantasia, but I believe I have reduced ability to visualize things with accuracy and in detail. My visualizations are very imperfect and more like glimpses than strong visualizations. In particular, I struggle to visualize faces.