# Perky effect

> English word · Noun

## Definitions
1. The phenomenon whereby sensory input, or perceptions, can be mistaken for a mental image when perceptual processes and mental imagery interfere with each other.

## Etymology
Named after Cheves Perky (1874–1940), American psychologist, who carried out a related experiment in which subjects were asked to visualize various objects on a screen while, unknown to them, very faint patches of color resembling these objects were projected onto the screen.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/perky-effect