Pareidolia - Simple English Wikipedia, the free encyclopedia

Satellite photo of a mesa in the Cydonia region of Mars, often called the "Face on Mars". This was given as evidence of extraterrestrial habitation. Later higher-resolution photos from other viewpoints demonstrated that the "face" is in fact a natural rock formation.

Pareidolia /pærɪˈdoʊliə/ parr-i-DOH-lee-ə) is a word from Ancient Greek to describe the phenomenon, that the human mind often perceives familiar patterns in a stimulus, even when they are not there.

Common examples are perceived images of animals, faces, or objects in cloud formations, the "man in the moon", the "moon rabbit", and hidden messages within recorded music played in reverse or at higher- or lower-than-normal speeds.

Pareidolia is a special case of clustering illusion.

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v t e Hidden messages
Main	Subliminal message
Audio	Backmasking list Hidden track list pregap list Phonetic reversal Reverse speech
Numeric	Numerology Cryptology Chronogram Theomatics Bible code
Visual	Fnord Pareidolia Hidden text Paranoiac-critical method Psychorama Sacred geometry Steganography Visual cryptography
Other	Apophenia Cryptic crossword Anagram Palindrome Unconscious mind Asemic writing Clustering illusion Easter egg Observer-expectancy effect Pattern recognition Simulacrum Synchronicity