Autokinesis is a scientific term used to describe an optical illusion that occurs when a stationary object appears to move in the absence of external motion. The word is spelled with four syllables: au-to-ki-ne-sis. The pronunciation is /ɔːtəʊkaɪˈniːsɪs/. The "au" is pronounced as "aw", the "o" is long, and the "i" sounds like "eye." The stress is on the second syllable, "to." The spelling of the term is derived from Greek roots, with "auto" meaning "self" and "kinesis" meaning "movement."
Autokinesis is a phenomenon observed in vision and perception where a stationary object appears to move on its own. The term is derived from the Greek words "auto" meaning "self" and "kinesis" meaning "movement." Autokinesis occurs when an individual stares at a fixed point of light or an object in darkness for an extended period of time, causing it to appear as if it is in motion. This perceived movement is a result of the eye's inability to maintain steady fixation on the stationary object.
The phenomenon of autokinesis can be attributed to the lack of visual reference points in the surrounding environment that would typically provide cues for motion perception. In situations with minimal external visual stimuli, the brain relies heavily on internal processes to interpret sensory information. Due to this reliance, the brain may generate illusory motion signals, resulting in the perception of movement in an object that is actually still.
Autokinesis can have significant implications in various fields, particularly in aviation and military sectors, where stable visual perception is crucial for accurate judgments of distance and position. Pilots and personnel engaged in night-time operations are particularly susceptible to autokinesis-induced errors in motion perception.
Efforts to minimize the impact of autokinesis include the use of multiple visual reference points or alternative navigation techniques that rely on more reliable positional information. Understanding and being aware of autokinesis can help individuals recognize and compensate for the potential visual illusion of object movement, therefore ensuring accurate perception and decision-making in environments with limited visual cues.
Autocinesis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word autokinesis is derived from the combination of two Greek words: auto, meaning self, and kinesis, meaning movement.