Aphantasia: the inability to form mental images of real or imaginary people, places, or things

In example: Mark Lawrence, a successful fantasy author, has a condition known as Aphantasia, which means he is unable to create mental visuals.

“Aphantasia.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/dictionary/aphantasia. Accessed 17 Aug. 2023.