Pareidolia
Overview
 
Pareidolia is a psychological phenomenon involving a vague and random stimulus
Stimulation
Stimulation is the action of various agents on nerves, muscles, or a sensory end organ, by which activity is evoked; especially, the nervous impulse produced by various agents on nerves, or a sensory end organ, by which the part connected with the nerve is thrown into a state of activity.The word...

 (often an image or sound) being perceived as significant. Common examples include seeing images of animals or faces in clouds, the man in the moon
Man in the Moon
The Man in the Moon is an imaginary figure resembling a human face, head or body, that observers from some cultural backgrounds typically perceive in the bright disc of the full moon...

 or the Moon rabbit
Moon rabbit
The Moon rabbit, also called the Jade Rabbit, in folklore is a rabbit that lives on the moon, based on pareidolia that identifies the markings of the moon as a rabbit. The story exists in many cultures, particularly in East Asian folklore, where it is seen pounding in a mortar and pestle...

, and hearing hidden message
Hidden message
A hidden message is information that is not immediately noticeable, and that must be discovered or uncovered and interpreted before it can be known...

s on records
Gramophone record
A gramophone record, commonly known as a phonograph record , vinyl record , or colloquially, a record, is an analog sound storage medium consisting of a flat disc with an inscribed, modulated spiral groove...

 played in reverse. The word comes from the Greek para- – "beside", "with", or "alongside"—meaning, in this context, something faulty or wrong (as in paraphasia
Paraphasia
Paraphasia is a feature of aphasia in which one loses the ability of speaking correctly, substitutes one word for another, and changes words and sentences in an inappropriate way. It often develops after a stroke or brain injury. The patient's speech is fluent but is error-prone, e.g...

, disordered speech) and eidōlon – "image"; the diminutive of eidos – "image", "form", "shape".
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