Palinopsia
(Redirected from Visual perseveration)
Palinopsia is a neurological disorder characterized by the persistence or recurrence of visual images after the stimulus has been removed. It is derived from the Greek words palin meaning "again" and opsia meaning "seeing". It is a symptom rather than a disease itself, and can be caused by a variety of conditions, including brain damage, migraine, hallucinogen persisting perception disorder, and certain drugs.
Classification[edit | edit source]
Palinopsia can be classified into two main types: hallucinatory palinopsia and illusory palinopsia.
Hallucinatory Palinopsia is characterized by the recurrence of images after a considerable delay and in different spatial locations than the original stimulus. These images are often clear and well-formed, and can be triggered by psychological stress or fatigue.
Illusory Palinopsia is characterized by the persistence or recurrence of images in the same spatial location as the original stimulus. These images are often distorted or degraded, and can be triggered by changes in lighting or movement.
Causes[edit | edit source]
The exact cause of palinopsia is unknown, but it is believed to be due to a disruption in the visual processing system. This can be caused by a variety of conditions, including:
- Brain damage: Damage to the visual processing areas of the brain, such as the occipital lobe, can cause palinopsia.
- Migraine: Some people experience palinopsia as a symptom of a migraine.
- Hallucinogen persisting perception disorder: This is a disorder characterized by a continual presence of sensory disturbances, most commonly visual, that are reminiscent of those generated by the use of hallucinogenic substances.
- Drugs: Certain drugs, such as tricyclic antidepressants, can cause palinopsia.
Treatment[edit | edit source]
Treatment for palinopsia is primarily aimed at addressing the underlying cause. This may involve changing medications, treating migraines, or addressing any underlying brain damage. In some cases, psychotherapy may be recommended to help manage the psychological impact of the condition.
See also[edit | edit source]
| Palinopsia Resources | |
|---|---|
|
 |
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
|
WikiMD's Wellness Encyclopedia |
| Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD
