Search results
Results from the WOW.Com Content Network
Closed-eye hallucination. Closed-eye hallucinations and closed-eye visualizations (CEV) are hallucinations that occur when one's eyes are closed or when one is in a darkened room. They should not be confused with phosphenes, perceived light and shapes when pressure is applied to the eye's retina, or some other non-visual external cause ...
Psychosis, delirium, or dementia [1] Visual release hallucinations, also known as Charles Bonnet syndrome or CBS, are a type of psychophysical visual disturbance in which a person with partial or severe blindness experiences visual hallucinations. First described by Charles Bonnet in 1760, [2][3] the term Charles Bonnet syndrome was first ...
Entoptic phenomena (from Ancient Greek ἐντός (entós) 'within' and ὀπτικός (optikós) 'visual') are visual effects whose source is within the human eye itself. (Occasionally, these are called entopic phenomena, which is probably a typographical mistake.) In Helmholtz 's words: "Under suitable conditions light falling on the eye ...
Retrieved from "https://en.wikipedia.org/w/index.php?title=Closed_eye_hallucinations&oldid=42335034"
Uncommon (understudied) Visual snow syndrome (VSS) is an uncommon neurological condition in which the primary symptom is that affected individuals see persistent flickering white, black, transparent, or colored dots across the whole visual field. [7][4] Other common symptoms are palinopsia, enhanced entoptic phenomena, photophobia, and tension ...
Ganzfeld effect. The Ganzfeld effect (from German for "complete field"), or perceptual deprivation, is a phenomenon of perception caused by exposure to an unstructured, uniform stimulation field. [1] The effect is the result of the brain amplifying neural noise in order to look for the missing visual signals.
Closed-eye hallucination – Class of hallucination; Entoptic phenomenon – Visual effect whose source is within the eye itself; Hypnagogia – State of consciousness leading into sleep; Kaleidoscope – Optical instrument to view patterns due to repeated reflection; Mandala – Spiritual and ritual symbol in Hinduism, Jainism and Buddhism
Peduncular hallucinosis (PH) is a rare neurological phenomenon that causes vivid visual hallucinations that typically occur in dark environments and last for several minutes. Unlike some other kinds of hallucinations, the hallucinations that patients with PH experience are very realistic, and often involve people and environments that are ...