by Visual imagination – or rather, the lack of it – can be verified by measuring pupil dilation, thereby providing the first physiological evidence of aphantasia, new research shows.
The study, led by researchers from UNSW Sydney and published in eLife, found that the pupils of people with aphantasia did not respond when asked to imagine dark and light objects, while those without aphantasia did.
https://www.futuremindslab.com/extremeimagery
