Some people, when asked to form an image, will report they cannot “see” anything. This recently-identified variation of human experience was named in 2015 as aphantasia. It is estimated that 2% to 5% of the population have a lifelong inability to generate any images within their mind’s eye.
Our findings showed people with aphantasia drew the objects of the correct size and location, but they provided less of the visual details such as colour and also drew a fewer number of objects compared to typical imagers.
Some participants with aphantasia noted what the object was through language – such as writing the words “bed” or “chair” – rather than drawing the object. This suggests those with aphantasia could be using alternative strategies such as verbal representations rather than visual memory. These differences in object and spatial detail weren’t due to differences in artistic ability or drawing effort.
Our results suggested people with aphantasia have intact spatial imagery abilities – the ability to represent the size, location and position of objects in relation to each other.
Interesting , but is there evidence that they can’t improve it. The brain is very plastic or is this a “disability” (or something like that)
From the url below:
Some people claim you can use image streaming for healing aphantasia (a state of the mind where you can’t produce mental images at will).
There are no evidence that Wengers methods can help people with aphantasia. But its helpful to improve weak or average imagery.
Personaly I prefer exercises used by Da Vinci and Nikola Tesla.
What exercises did they use?