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

What do typical visualizers experience? How does my imaginative experience compare? Designer Melanie Scheer introduces a new way to visualize the visual imagination spectrum.
Melanie Scheer · June 2022

Ganzflicker is known to elicit the experience of pseudo-hallucinations... But how is it that some people see complex hallucinations such as "old stone castles"?
Reshanne Reeder · June 2021

A case for studying mental imagery as a whole
February 2021

Why might your mind's eye be blind while your friend can picture crystal-clear images? Shocking insights into the known neurodifferences in imagery vividness.
Mike Perrotta · February 2021

Discover if you have aphantasia using a simple binocular rivalry test you can do at home. Learn about objective measurement techniques and what your results could mean.
Aphantasia Network · May 2019

When it comes to visualizing things in the mind's eye, our experience varies widely. Francis Galton's groundbreaking Breakfast Study revealed this phenomenon over 140 years ago, fundamentally changing how we understand visual imagery and its assessment.
Aphantasia Network · September 2018