akinetopsia
Sign in to saveAkinetopsia (from Greek akinesia 'absence of movement' and opsis 'seeing'), also known as cerebral akinetopsia or motion blindness, is an extremely rare neuropsychological disorder, having only been documented in a handful of medical cases, in which a patient cannot perceive motion in their visual field, despite being able to see stationary objects without issue. The syndrome is the result of damage to visual area V5, whose cells are specialized to detect directional visual motion. There are varying degrees of akinetopsia: from seeing motion as frames of a cinema reel to an inability to discri
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Article
27 sectionsContents
- Signs and symptoms
- Inconspicuous akinetopsia
- Gross akinetopsia
- Causes
- Brain lesions
- Transcranial magnetic stimulation
- Alzheimer's disease
- Antidepressants
- Areas of visual perception
- V5
- V1
- Ventral and dorsal streams
- Case studies
- Potzl and Redlich's patient
- Goldstein and Gelb's patient
- "LM"
- Visual functions other than movement vision
- Disturbance of movement vision
- Motion in depth
- Inner and outer visual fields
- Motion aftereffect and phi phenomenon
- Visually guided pursuit eye and finger movements
- Additional experiments
- "TD"
- Pelak and Hoyt's Alzheimer's patient
- Pelak and Hoyt's TBI patient
- References
Akinetopsia (from Greek akinesia 'absence of movement' and opsis 'seeing'), also known as cerebral akinetopsia or motion blindness, is an extremely rare neuropsychological disorder, having only been documented in a handful of medical cases, in which a patient cannot perceive motion in their visual field, despite being able to see stationary objects without issue. The syndrome is the result of damage to visual area V5, whose cells are specialized to detect directional visual motion. There are varying degrees of akinetopsia: from seeing motion as frames of a cinema reel to an inability to discriminate any motion. There is currently no effective treatment or cure for akinetopsia.
==Signs and symptoms== Akinetopsia can manifest in a spectrum of severity and some cases may be episodic or temporary. It may range from "inconspicuous akinetopsia" to "gross akinetopsia", based on symptom severity and the amount the akinetopsia affects the patient's quality of life.