Aphantasia Research

Evolving library of aphantasia and hyperphantasia research. Explore the extremes. Share the latest knowledge. 

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Journal article

I cannot picture it in my mind: acquired aphantasia after autologous stem cell transplantation for multiple myeloma

Adam L Bumgardner, Kyle Yuan, Alden V Chiu in National Library of Medicine
Aphantasia, the loss of mental imagery, is a rare disorder and even more infrequent when acquired. No previous cases have been identified that were caused by transplant-related treatment. We describe a case of acquired aphantasia in a 62-year-old male with refractory IgG kappa multiple myeloma after receiving an autologous stem cell transplant (ASCT) following high-dose melphalan with a complicated hospital admission.
Journal article

Behavioral and neural signatures of visual imagery vividness extremes: Aphantasia vs. Hyperphantasia

Fraser Milton, Jon Fulford, Carla Dance et al in Oxford Academic
First systematic, wide-ranging neuropsychological and brain imaging study of people with aphantasia (n=24), hyperphantasia (n=25) and mid-range imagery vividness (n=20). These behavioral and neural signatures of visual imagery vividness extremes validate and illuminate this significant but neglected dimension of individual difference.
Journal article

Imagine, and you will find – Lack of attentional guidance through visual imagery in aphantasics

Merlin Monzel, Kristof Keidel & Martin Reuter in SpringerLink
New study finds visual imagery directly influences how we process information and is not simply a byproduct of cognitive priming. Revealing new evidence in the imagery debate.
Journal article

Aphantasia: The science of visual imagery extremes

Rebecca Keogh, Joel Pearson, Adam Zeman in ScienceDirect
A large network of brain activity spanning frontal, parietal, temporal, and visual cortex is involved in generating and maintain images in mind. The anatomy and functionality of visual cortex, including primary visual cortex, have been associated with individual differences in visual imagery ability, pointing to a potential correlate for both aphantasia and hyperphantasia.
Journal article

The critical role of mental imagery in human emotion: insights from fear-based imagery and aphantasia

Dr Rebecca Keogh, Joel Pearson in Proceedings of the Royal Society B
People with aphantasia – that is, the inability to visualise mental images – are harder to spook with scary stories, a new UNSW Sydney study shows. According to the findings, scary stories lost their fear factor when the readers couldn’t visually imagine the scene – suggesting imagery may have a closer link to emotions than scientists previously thought.
Journal article

Aphantasia, imagination and dreaming

Cecily M. K. Whiteley in Springer
The majority of aphantasics retain the capacity to experience rich visual dreams, despite being unable to produce visual imagery while awake. Aphantasia raises important theoretical concerns for the ongoing debate in the philosophy and science of consciousness over the nature of dreams.
Journal article

The Ganzflicker Experience: Rhythmic visual flicker induces complex illusions in people with visual imagery but not aphantasia

Varg Königsmark, Johanna Bergmann, Reshanne Reeder in PsyArXiv
Rhythmic visual flicker is known to induce illusions and altered states of consciousness. Study finds people with visual imagery were more susceptible to flicker-induced illusions (FII) than people with aphantasia.
Journal article

A world without imagination? Consequences of aphantasia for an existential account of self

Mélissa Fox-Muraton in ResearchGate
Aphantasia, although it does not imply the absence of all forms of imagination, such as perspective taking and narrative construction, is quite literally a disorder affecting the individual’s capacity to form and work with images, and thus the absence of a certain way in which consciousness engages with the image-object, distinct both from perception and thought. This paper examines how phenomenological accounts of imagination can help us to better understand aphantasia, and also the ways in which aphantasia calls into question some aspects of an existential account of self.
Journal article

A cognitive profile of multi-sensory imagery, memory and dreaming in aphantasia

Alexei J. Dawes, Rebecca Keogh, Thomas Andrillon, Joel Pearson in natureresearch
Study finds that aphantasic individuals report decreased imagery in other sensory domains, although not all report a complete lack of multi-sensory imagery. They also report less vivid and phenomenologically rich autobiographical memories and imagined future scenarios, as well as fewer dreams.
Journal article

Cortical excitability controls the strength of mental imagery

Rebecca Keogh, Johanna Bergmann, Joel Pearson in eLife
The strength of a person’s mental imagery is linked to the excitability of different brain regions. Exactly how this network controls the strength of visual imagery remains unknown.
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