Case ReportsDyskinetopsic Palinopsia: Palinopsia Accompanied by Moving AfterimagesLahiri, Durjoy MD, DM*; Ardila, Alfredo PhD†,‡; Chatterjee, Subham MD§; Dubey, Souvik MD, DM*; Ray, Biman Kanti MD, DM*Author Information *Department of Neurology, Bangur Institute of Neurosciences, Institute of Post-Graduate Medical Education and Research, Seth Sukhlal Karnani Memorial Hospital, Kolkata, West Bengal, India †Institute of Linguistics and Intercultural Communication, I.M. Sechenov First Moscow State Medical University, Moscow, Russia ‡Psychology Doctoral Program, Albizu University, Miami, Florida §Department of Psychiatry, Institute of Post-Graduate Medical Education and Research, Seth Sukhlal Karnani Memorial Hospital, Kolkata, West Bengal, India The authors declare no conflicts of interest. Correspondence: Alfredo Ardila, PhD, 12230 NW 8th Street, Miami, Florida 33182 (email: [email protected]). Cognitive and Behavioral Neurology: December 2020 - Volume 33 - Issue 4 - p 266-270 doi: 10.1097/WNN.0000000000000247 Buy Metrics Abstract Palinopsia refers to the abnormal persistence, or recurrence, of visual images after a visual stimulus has subsided. We describe here a case of palinopsia accompanied by a visual motion perception disorder as manifested by moving afterimages. A 71-year-old man presented to us after having experienced acute-onset, vivid, visual hallucinations for 1 week. A detailed history revealed that he was hallucinating multiple living and nonliving objects. He also complained of a persistence of afterimages, particularly in the left visual field. He reported that, on a few occasions, while sitting by the window in his room, he had seen a moving car on the road; immediately after the car had disappeared from his sight, he had then seen the same car moving backward at almost the same speed—as if the driver had applied the reverse gear. A neuropsychological assessment did not reveal any deficits in attention, language, or episodic memory. Visual field testing by confrontational perimetry suggested left hemianopia. An MRI of the brain revealed an arteriovenous malformation in the medial part of the right occipital lobe, affecting both the lingual gyrus and the inferior occipital gyrus. Palinopsia has generally been described in reference to static afterimages. In our case, not only was the afterimage that was perceived by the patient in motion, but the direction of the movement was also opposite to that of the actual object. We propose the term dyskinetopsic palinopsia, or simply motion-related palinopsia, for this particular condition. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.