Akinetopsia is a specific inability to see objects in motion, the perception of other visual attributes, such as color, form, and depth, remaining intact. This statokinetic dissociation may be known as Riddoch’s phenomenon; the syndrome may also be called cerebral visual motion blindness. Such cases, although exceptionally rare, suggest a distinct neuroanatomical substrate for movement vision, as do cases in which motion vision is selectively spared in a scotomatous area (Riddoch’s syndrome).

Akinetopsia reflects a lesion selective to area V5 of the visual cortex. Clinically it may be associated with acalculia and aphasia.


Zihl J, Von Cramon D, Mai N. Selective disturbance of movement vision after bilateral brain damage. Brain 1983; 106: 313-340
Zeki S. Cerebral akinetopsia (cerebral visual motion blindness). Brain
1991; 114: 811-824


Cross References

Acalculia; Aphasia; Riddoch’s phenomenon