autokinetic
/ˌɔːtə(ʊ)kɪˈnɛtɪk/ /ˌɔːtə(ʊ)kʌɪˈnɛtɪk/adjective
1Producing voluntary movement; self-moving; automatic.
2 Psychology. Of or relating to the optical illusion of autokinesis.
Origin
Mid 19th century; earliest use found in Marshall Hall (1790–1857), physician and neurophysiologist. From auto- + kinetic.