Aphantasia is the inability to voluntarily visualize mental images. It can be considered the opposite of hyperphantasia, the condition of having extremely vivid mental imagery.
Facts
Classification
Type of Phenomenon First Described Year Sources
1. Wikipedia: Aphantasia
https://en.wikipedia.org/wiki/AphantasiaQuote, https://en.wikipedia.org/wiki/Aphantasia
the inability to voluntarily visualize mental images
2. Aphantasia (Wikipedia)
Wikipedia Aphantasia lead paragraph (w-bbfill-psymath4-0926)Quote, Wikipedia Aphantasia lead paragraph (w-bbfill-psymath4-0926)
first described by Francis Galton in 1880
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