Aphantasia
Core Terms
Definition
Aphantasia is the inability to voluntarily create mental images. People with aphantasia cannot visualize faces, places, or objects in their mind's eye, although they can recognize and describe them. The term was coined by neurologist Adam Zeman in 2015.
Detailed Explanation
Aphantasia describes the absence or severe limitation of the ability for visual imagination. The term derives from Greek "a" (without) and "phantasia" (imagination) and was introduced in 2015 by British neurologist Adam Zeman. Approximately 1% of the population is affected according to the strict definition, around 4% including adjacent hypophantasia (Wright et al. 2024; Dance et al. 2022). People with aphantasia have functioning memory and can be creative, but use different cognitive processes than visualization. They often think conceptually, verbally, or through other sensory modalities. Aphantasia can be congenital or acquired, the latter for example after brain injury or stroke, or in connection with mental illness such as depression. Discovery of one's own aphantasia often occurs only in adulthood, as affected individuals did not know that others can actually "see" when imagining something.
Keywords
- Aphantasia
- mental images
- visualization
- imagination
- Adam Zeman
Learn more
Related Terms
- HyperphantasiaHyperphantasia refers to the ability to form extremely vivid, photorealistic mental images. People with hyperphantasia can imagine scenes so detailed that their inner images can almost be confused with real perception.
- VVIQ (Vividness of Visual Imagery Questionnaire)The VVIQ is a standardized questionnaire for measuring the vividness of visual imagery. It consists of 16 items where participants rate their ability to visualize on a 5-point scale.
- Mental ImagesMental images are internal visual representations that arise without external stimuli. They enable seeing objects, scenes, or people before the "mind's eye," such as when remembering, dreaming, or planning.
- Mind's EyeThe 'mind's eye' is the metaphorical term for the ability to create and view mental images. It describes the subjective experience of visual imagination.
External Resources
Do you have Aphantasia?
Take our VST-16 test and find out where you fall on the visualization spectrum.