Pareidolia is a brain response that causes a person to recognize a familiar object, image, or sound in a random stimulus. For example, it can happen when a cloud looks like an animal or when marks on a wall look like a face.
This change in perception is usually not considered a serious problem. It appears to be more common in people who feel lonely or are very religious.
Although pareidolia is not a disease, it may cause discomfort or appear with other symptoms in some cases. When this happens, it is recommended to see a neurologist or psychiatrist to check for any health problem that may need attention.
How to identify
Pareidolia can be identified when a meaningless stimulus, such as a random noise or image, creates the impression of something familiar, such as a voice or a face.
Examples of pareidolia include:
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Noticing clouds shaped like animals;
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Thinking someone is whispering when hearing the sound of a fan;
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Seeing the image of a human face in a rock;
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Looking at the front of a car and noticing that it looks like a smiling person;
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Hearing rain and thinking there are voices talking.
This change in perception is not associated with other symptoms, and the person usually realizes they are mistaken or that the sensation is only caused by a similarity in shape or sound, for example.
If other symptoms are present, such as mental confusion, delusions, or hallucinations, it is recommended to see a doctor for an evaluation.
Meaning of pareidolia
The meaning of pareidolia is usually linked to each person’s life experiences, because the brain tends to recognize what is most familiar. For this reason, the most common forms of pareidolia usually involve human or animal faces.
From an evolutionary perspective, pareidolia appears to be related to survival. This ability may have first developed as a way to identify possible threats, such as predators.
However, pareidolia is also believed to be associated with increased cognitive ability and humans’ social behavior.
Types of pareidolia
The main types of pareidolia are:
1. Facial pareidolia
Facial pareidolia happens when a person identifies faces where they do not actually exist, such as in buildings, clouds, foods, or trees.
2. Auditory pareidolia
Auditory pareidolia happens when a person hears specific sounds, such as music, whispering, or voices, while listening to noises that have no real meaning.
Although it can be confused with an auditory hallucination, the specific sound usually goes away when the original noise stops, such as after turning off a fan.
Why it happens
Pareidolia happens because the human brain naturally tries to connect sensory stimuli with meaningful patterns that the person recognizes.
This phenomenon can happen to anyone, regardless of age or health history. However, it appears to be more common in people who feel lonely, have little interaction with others, or are religious, for example.
Is pareidolia a disease?
Pareidolia is considered a normal phenomenon, not a disease. This is because the human brain naturally tends to find meaning in the stimuli it receives, even when the person does not notice or intend for this to happen.
This phenomenon has been studied in health conditions such as schizophrenia, bipolar disorder, and neurodegenerative diseases. However, it has not yet been proven how these conditions and pareidolia are related.