How do you measure something you can't see? Tools like the PSIQ and other imagery questionnaires let researchers quantify vividness and study it at scale.

Since 2015, "aphantasia" has reshaped our understanding of imagination, revealing that not everyone visualizes mentally. This discovery, along with "hyperphantasia," highlights the diverse nature of human imagination.
Tom Ebeyer · May 2024

New research from the University of Bonn reveals how aphantasia affects memory, particularly when remembering the past. The study of 30 participants found that people with aphantasia experience significant challenges in recalling autobiographical memories.
Tom Ebeyer · March 2024

This apple illusion allows people who can't visualize to temporarily 'see' an image that isn't there—using visual perception to demonstrate what others experience through their imagination.
Aphantasia Network · October 2023

February 2024
Deery · Phenomenology and the Cognitive Sciences
This philosophy paper asks how Merleau-Ponty's ideas would explain the perception-like feel of mental images. It argues that neither the view of images as perceptual representations nor the view of them as simulations explains that feel, and proposes instead that imagining something means partly taking up the bodily stance one would have if it were really there, bringing a vague sense of how it could look. In a footnote, the author suggests that people with aphantasia keep this capacity for perception but cannot use it on purpose to make absent things appear, while calling aphantasia beyond the paper's scope.
Kvamme, Nagai and Silvanto · Trends Open
In this opinion article, the authors propose that the brain's processing of body signals, centered on the anterior insula, is a shared source of both mental imagery and emotion. On this view, conditions such as depression, anxiety, PTSD, autism and ADHD change imagery because they disturb this same system, and body-focused treatments might help restore imagery. The authors say the causal direction has not yet been shown and call for long-term and treatment studies to test it.
Panigutti and colleagues · Neuroscience & Biobehavioral Reviews
This systematic review found only 11 studies on imagery and hallucinations in Parkinson's, Alzheimer's and schizophrenia, and none in Lewy body dementia. Seven reported a link and four did not, so the evidence is indecisive.
Ernst, Kronbichler and Meyer · Scientific Reports
In an online study of 156 young adults judging one trolley dilemma each, those who said afterwards they had pictured the footbridge version as an onlooker more often called pushing the man acceptable (33% against 12% of those who pictured it through their own eyes). There was no such link for the lever version or for willingness to act, and vividness showed no clear effect. More than one in five said they used no visual imagery when judging acceptability. Because people reported their viewpoint after deciding, the authors cannot say whether it shaped the judgment or was reconstructed afterwards.
How do we define "mental image" in visualization, and how does personal interpretation affect generated images?
Victor · · 1 reply
Marketing often targets neurotypicals, leaving others feeling misled. How can we create strategies that resonate with diverse cognitive experiences?
Josh · · 2 replies
A self-report measure of attention towards internal bodily sensations.
Understanding your beliefs about how accurately you perceive your body's signals.