Hallucinations & Perception

Imagery and hallucination look related but aren't the same thing. This covers pseudo-hallucinations, the Ganzflicker effect, and where perception and imagination overlap.

See every topic

Read

Something to try

Can't Visualize An Apple? Try This Apple Illusion to Experience What Others See

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

A member’s story

Hypnopompia: Between Sleep and Awake Where Someone with Aphantasia May “See” Imagery

On rare occasions in the morning, between sleep and awake, when the images from my dreams float behind my eyes, that’s when I revel in what it must be like to “see” imagery.

Liana Scott · December 2022

Hallucinations & Perception

Read

Can't Visualize An Apple? Try This Apple Illusion to Experience What Others See

Hypnopompia: Between Sleep and Awake Where Someone with Aphantasia May “See” Imagery

Hallucinations & Perception

Read

Can't Visualize An Apple? Try This Apple Illusion to Experience What Others See

Hypnopompia: Between Sleep and Awake Where Someone with Aphantasia May “See” Imagery

Pseudo-Hallucinations and Aphantasia

Watch

Why Don't We Hallucinate Our Mental Images?

Research

Seeing without eyes: Relation between visual mental imagery and visual hallucinations

Comparing the characteristics of hallucinations and mental imagery: a large cross-sectional study in the general population

Carl Jung: a life on the edge of reality with hypnagogia, hyperphantasia, and hallucinations

Modelling perception as a hierarchical competition differentiates imagined, veridical, and hallucinated percepts

From the community

Hallucination versus visualization?

Why?

Is phantasia, the ability to visualize at will, similar to experiencing hypnogogic imagery?

Ability to visualize most highly through hallucinations?