Echophenomenon
Echophenomenon
Echophenomenon (/ˌekoʊfəˈnɒmɪnɒn/; from the Greek words "echo", meaning "sound", and "phenomenon", meaning "thing appearing to view") is a term used in neurology and psychiatry to describe the automatic and involuntary repetition or imitation of another person's actions or words. This can occur in various neurological and psychiatric disorders, including Tourette syndrome, schizophrenia, and certain forms of dementia.
Etymology
The term "echophenomenon" is derived from the Greek words "echo" (ἠχώ), meaning "sound", and "phenomenon" (φαινόμενον), meaning "thing appearing to view". It was first used in the medical literature in the late 19th century to describe the involuntary repetition of sounds or actions observed in certain neurological and psychiatric conditions.
Types of Echophenomenon
There are two main types of echophenomenon: echolalia and echopraxia.
- Echolalia (/ˌekoʊˈleɪliə/; from the Greek words "echo", meaning "sound", and "lalia", meaning "speech") is the involuntary repetition of vocalizations made by another person.
- Echopraxia (/ˌekoʊˈpraksiə/; from the Greek words "echo", meaning "sound", and "praxis", meaning "action") is the involuntary repetition of the movements of another person.
Related Terms
- Palilalia: The repetition of one's own words or phrases.
- Coprolalia: The involuntary utterance of socially inappropriate or taboo words or phrases.
- Gilles de la Tourette syndrome: A neurological disorder characterized by repetitive, stereotyped, involuntary movements and vocalizations called tics.
See Also
External links
- Medical encyclopedia article on Echophenomenon
- Wikipedia's article - Echophenomenon
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