Research & Science

Science-based insights on aphantasia

Contents

Aphantasia research has made enormous progress since 2015. Here you'll find all the important scientific findings – from history to tests to current studies.

History of Aphantasia Research

Although the phenomenon has been known for over 140 years, it only received its name in 2015.

1880
Francis Galton describes the phenomenon
The British scientist first documents individual differences in mental imagery with his famous 'breakfast table experiment'.
2005
Patient MX contacts Adam Zeman
After a cardiac procedure (coronary angioplasty), a patient loses his ability to visualize mentally and contacts neurologist Adam Zeman (University of Exeter) – the starting point of modern aphantasia research.
2010
Case study 'Patient MX' published
Zeman et al. publish the case study of the first extensively documented case of acquired aphantasia (Neuropsychologia).
2015
Term 'aphantasia' is coined
Adam Zeman introduces the term (Greek a-phantasia = 'without appearance'). The New York Times reports – worldwide attention follows.
2024
Largest prevalence study
Wright et al. examine over 9,000 participants and determine a prevalence of ~1% for pure aphantasia.

The term 'aphantasia' derives from the Greek 'phantasia' (φαντασία = appearance, image) – Aristotle's term for the 'mind's eye'. The prefix 'a-' means 'without'.

— Adam Zeman, University of Exeter

Prevalence – How Common is Aphantasia?

The largest study (Wright et al. 2024, n=9,063) shows: About 1% of the population has pure aphantasia. Including mild forms (hypophantasia), it's up to 4%.

Aphantasia: 1%
Hypophantasia: 3%
Typical: 90%
Hyperphantasia: 6%

Source: Wright et al. (2024): 'An international estimate of the prevalence of differing visual imagery abilities'. Frontiers in Psychology.

Scientific Tests for Aphantasia

There are various validated methods to measure mental imagery ability – from questionnaires to objective behavioral tests.

VVIQ (Vividness of Visual Imagery Questionnaire)

Subjective questionnaire • Gold standard

The most widely used test, developed in 1973 by David Marks. 16 questions in four thematic groups measure the vividness of mental images.

Score 16-80
Cronbach's α = 0.91-0.96

PSIQ (Plymouth Sensory Imagery Questionnaire)

Subjective questionnaire • Multisensory

Captures not only visual but all 7 sensory modalities. Particularly important for detecting multisensory aphantasia.

21-35 items
7 sensory modalities

Binocular Rivalry Test

Objective behavioral test

A test that does not rely on self-assessment: groups with aphantasia show little 'imagery priming' on average. The effect is too small to classify an individual (Monzel et al. 2025).

Objective measurement
Complements self-reports

Take the Test Now

The Imagery Spectrum

Mental imagery exists on a spectrum – it's not a binary 'all or nothing'. Most people fall somewhere between the extremes.

Aphantasia
Typical
Hyperphantasia

Multisensory Aphantasia

About 26% of people with visual aphantasia report a complete loss in other sensory modalities as well (Dawes et al. 2020); not only the visual sense is affected.

Visual
Auditory
Olfactory
Gustatory
Tactile
Kinesthetic
Emotional

Types of Aphantasia

CongenitalPresent from birth, often only noticed in teenage years or twenties.
AcquiredDeveloped after an event like brain injury or surgery – very rare.

Myths & Facts

There are many misconceptions about aphantasia. Here are the scientific facts:

Common Myths

❌ Myth: Aphantasia is a disorder or disability

Aphantasia is a neurological variation – not a disease and no treatment needed. It's simply a different way of processing information.

❌ Myth: People with aphantasia cannot dream

The majority of aphantasics dream visually. The difference: They cannot create voluntary mental images, involuntary ones (in dreams) are often still possible.

❌ Myth: Aphantasia prevents creativity

Ed Catmull, co-founder of Pixar, has aphantasia. Creativity uses many channels – verbal, conceptual, tactile. Visualization is not the same as imagination.

❌ Myth: 'Seeing in the mind' is just a metaphor

Most people (~90%) actually see mental images – for hyperphantasics as vivid as real seeing. Only comparison reveals the difference.

❌ Myth: Aphantasia only affects visual imagery

About 26% of people with visual aphantasia report a complete loss in other sensory modalities as well (Dawes et al. 2020) – reduced or absent imagery ability in multiple or all 7 sensory modalities.

Confirmed Facts

✓ Aphantasia is real and measurable

The Binocular Rivalry test provides self-report-independent evidence that aphantasia is measurable at the perceptual level – not just misreporting or 'poor metacognition'. The effect is too small to classify an individual (Monzel et al. 2025).

✓ Prevalence is ~1% (strict) to ~4% (incl. hypophantasia)

The largest study (n=9,063) confirms: Pure aphantasia affects about 1 in 100 people. No gender difference demonstrated.

✓ Aphantasics have certain strengths

A self-selected sample study found an association with STEM careers (Zeman et al. 2020); strong abstract/logical thinking; a lab experiment found fewer visual flashbacks after a trauma-film paradigm (Keogh, Wicken & Pearson (2023, Preprint)) – not proven protection against PTSD as a disorder.