Echophenomenon
Echophenomenon (also known as echo phenomenon; from Ancient Greek ἠχώ (ēkhṓ) "echo, reflected sound") is "automatic imitative actions without explicit awareness"[1] or pathological repetitions of external stimuli or activities, actions, sounds, or phrases, indicative of an underlying disorder.[2][3]
The echophenomena include repetition:[1]
- echolalia (syn. echophrasia) – of vocalizations (the most common of the echophenomena)[1]
- echopalilalia – of words[4]
- echothanatologia - of words centered on death, described in a review of grief in the context of neurodevelopmental disorders[5]
- echopraxia (syn. echokinesis, echomatism[4]) – of actions, movements
- echothanatopraxia - of actions related to the cause of death [5]
- echopathy – of actions or speech[4]
- echoplasia – physically or mentally, tracing contours of objects[1][3]
- echolalioplasia – involving sign language, described in one individual with Tourette syndrome (as of 2012[update]).[1][6]
References
- ^ PMID 22807284.
- PMID 2477866.
- ^ PMID 18337631. Archived from the original(PDF) on 2021-08-08. Retrieved 2019-12-14.
- ^ ISBN 978-0-19-534159-1.
- ^ ISSN 2195-7185.
- PMID 8434883.