Echophenomenon
From Infogalactic: the planetary knowledge core
Echophenomenon (also known as echo phenomenon) 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 – of vocalizations (the most common of the echophenomena)[1]
- echopraxia – of actions
- echomimia – of facial expressions
- echographia – in writing
- echoplasia – physically or mentally, tracing contours of objects[1][3]
- echolalioplasia – involving sign language, described in one individual with Tourette syndrome as of 2012.[1][4]