People with high verbal thinking process almost all their thoughts in literal words.
People with high verbal-linguistic intelligence display a facility with words and languages. They are typically good at reading, writing, telling stories and memorizing words along with dates.
People with aphantasia recall almost all their experiences in literal words or generic concepts.
Aphantasia is the inability to voluntarily create mental images in one's mind.
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The phenomenon was first described by Francis Galton in 1880 in a statistical study about mental imagery. Galton found it was a common phenomenon among his peers. He wrote:To my astonishment, I found that the great majority of the men of science to whom I first applied, protested that mental imagery was unknown to them, and they looked on me as fanciful and fantastic in supposing that the words 'mental imagery' really expressed what I believed everybody supposed them to mean. They had no more notion of its true nature than a colour-blind man who has not discerned his defect has of the nature of colour.
Blake Ross, co-creator of Mozilla/Firefox, provides an excellent personal account of the condition:
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If you tell me to imagine a beach, I ruminate on the “concept” of a beach. I know there’s sand. I know there’s water. I know there’s a sun, maybe a lifeguard. I know facts about beaches. I know a beach when I see it, and I can do verbal gymnastics with the word itself.But I cannot flash to beaches I’ve visited. I have no visual, audio, emotional or otherwise sensory experience. I have no capacity to create any kind of mental image of a beach, whether I close my eyes or open them, whether I’m reading the word in a book or concentrating on the idea for hours at a time—or whether I’m standing on the beach itself.
And I grew up in Miami.
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I would expect a high correlation between these two conditions, but I haven't been able to find anything significant that deals with both of them.
Have there been any studies along this line?