negative hallucination

noun

1. psychol an apparent abnormal inability to perceive an object

Example Sentences

As the artist and critic David Batchelor writes in his 2000 book, “Chromophobia,” at a certain point ignorance becomes willful denial—a kind of “negative hallucination” in which we refuse to see what is before our eyes.

Read more on The New Yorker

Or he may perceive them, be unable to explain them, and feel considerable terror until the "negative hallucination" is dissolved by a fresh word of command.

Read more on Project Gutenberg