What This Study Is About
Researchers wanted to find out whether the full 16-item Vividness of Visual Imagery Questionnaire (VVIQ) — the "gold standard" for identifying aphantasia — is overkill for its most common job: simply figuring out who has aphantasia. They argued that because people with no mental imagery give the same answer regardless of what they're asked to visualize, most of those 16 items are redundant. Their goal was to develop a single-question screener that could replace the full questionnaire for identifying aphantasics.
How They Studied It
The team analyzed a massive dataset of 35,467 people from 159 countries who completed the VVIQ through the Aphantasia Network website. Because the sample was skewed toward people at both extremes of the imagery spectrum (a lot of aphantasics and hyperphantasics signed up, which isn't representative of the general population), they also created a weighted version of the data that matched the distribution found in a separate, randomly sampled U.S. population study.
They tested three candidate single-item questions against five different statistical definitions of aphantasia, ranging from lenient (total VVIQ score ≤ 32) to strict (a perfect score of 16, meaning "no image at all" on every single item). For each combination, they measured how well a single question could sort people into "aphantasic" or "not aphantasic" — looking at sensitivity (catching true aphantasics) and specificity (not falsely flagging typical imagers).
What They Found
The 16 VVIQ items were extremely highly correlated with each other, confirming massive redundancy — especially for people at the extremes. If someone answered "no image at all" on one item, they almost always answered the same way on all of them. This makes intuitive sense: if you can't visualize anything, it doesn't matter whether you're asked to picture an apple or a sunset.
Of the three candidate questions, Q2 — "Visualise a place that you know very well in every possible detail (e.g., your workplace, your bedroom or your favourite bar). How vivid is the picture that comes before your mind's eye?" — came out on top. It had the highest specificity across all definitions, meaning it was best at avoiding false positives. Its sensitivity was also strong, especially when paired with the strictest definition of aphantasia (total VVIQ = 16).
They also found that the commonly used cutoff of ≤ 32 lumps together people with truly absent imagery and people with vague, dim imagery (hypophantasia), making it a poor definition for "core" aphantasia.
What This Might Mean
The study makes a case that for screening purposes — quickly identifying who likely has aphantasia before a deeper assessment — a single well-chosen question is nearly as good as the full 16-item VVIQ. This could save significant time in research and clinical settings, especially since aphantasics find the full VVIQ tedious (answering the same thing 16 times when you can't visualize anything).
The authors also stress the importance of distinguishing core aphantasia (complete absence of imagery) from hypophantasia (very weak imagery), since these may be meaningfully different experiences that get blurred together under loose definitions.
One Important Caveat
The sample was heavily self-selected — people who already suspected they had aphantasia or unusually vivid imagery were more likely to take the quiz. While the researchers corrected for this statistically, the single-item screener hasn't yet been validated in a fully independent, randomly sampled population. They also note that this screener only covers visual imagery; people who lack imagery in other senses (sound, taste, etc.) would need separate assessment.