

Imagination is a spectrum as far as I know only the two ends have a name.
Vviq is often used to rate visual imagination : https://davidfmarks.net/vividness-of-visual-imagery-questionnaire-2/
Aphantasia can affect other sensory modalities as well but I’m not aware of any methods to measure
Or maybe hypophantasia : https://aphantasia.com/topic/hypophantasia/