Akintopia, also known as cerebral akintopia or motion blindness, is a rare neuropsychiatric disorder, affecting 1-2% of the world's population, characterized by the inability to predict movement in the visual field despite having normal vision for stationary objects. There are varying degrees of akathisia: ranging from seeing movement as frames of a movie reel to not being able to discern any movement at all. There is currently no effective treatment to cure or alleviate akathisia. The akathisia is divided into two separate categories, "vague akathisia" or "visual akathisia", depending on the severity of the symptoms and the extent to which the condition affects the patient's quality of life. The akathisia is often described as seeing movement similar to a movie reel or as a multiple exposure image. The akathisia is the most common type, with sufferers experiencing stroboscopic vision that can be extremely distressing. The akathisia is often accompanied by visual sequences, with afterimages being left at each frame of movement. Etiologies include prescription drugs, hallucinogenic persistent perception disorder, and persistent, unobstructed aura. The pathophysiology of the immobility illusion is unknown, but some hypotheses suggest that it results from inappropriate activation of physiological inhibition mechanisms normally used to maintain visual stability during eye movements. The immobility illusion is an extremely rare condition. Affected patients suffer from profound motion blindness and have difficulty performing activities of daily living. Instead of seeing moving objects in the form of a movie reel, these patients have trouble perceiving all of the motion in the entirety of the immobility illusion. Most of what is known about this extremely rare condition comes from a case study of a single patient, known as LM. LM described having difficulty pouring a cup of tea or coffee “because the liquid seemed frozen, like a glacier.” The patient could not tell when to stop pouring, as she was unable to perceive the movement of the rising liquid in the cup. LM and other patients complained of difficulty following conversations, due to loss of lip movements and altered facial expressions. LM reported feeling unsafe when more than two people were walking around the room: “People would pop up here and there, but I didn’t see them move.” One can infer movement by comparing the change in location of an object or person. LM and other patients also described severe difficulty crossing the street or driving. LM began to undergo auditory training to judge distance audibly. Changes in brain structure disrupt the psychological process responsible for understanding sensory information, in this case visual information. The resulting visual motion disorder may be due to the anatomical separation of visual motion processing from other functions. Color perception is also selectively impaired in a manner similar to the illusion of immobility, as in total color blindness. The affected person lacks the ability to see movement despite intact spatial acuity, flash detection, color vision, and stereoscopic vision. Other intact functions include visual spatial perception and visual identification of objects, shapes, and faces. In addition to simple perception, the illusion of immobility occurs with disturbances in visual motor tasks, such as reaching for and picking up objects. The importance of the individual's own movement feedback is highlighted when performing these tasks.