Reimagining the vividness of visual imagery questionnaire as a single item screener for aphantasia

VVIQ items showed high redundancy for identifying aphantasia, with inter-item correlations ranging from .79 to .90. A single screening question about visualizing a familiar place achieved high specificity (98.8%) and sensitivity (97.5%) against the strictest definition of core aphantasia (VVIQ = 16), suggesting the full 16-item questionnaire is unnecessary for screening purposes.