Hallucination - Wikipedia, the free encyclopedia
A visual hallucination is "the perception of an external visual stimulus where none exists". Alternatively, a visual illusion is a distortion of a real external stimulus.
Hallucination | Encyclopedia of Psychology
A hallucination is a sensation or sensory perception that a person experiences in the absence of a relevant external stimulus. That is, a person experiences
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Hallucination - definition of hallucination by The Free ...
hal·lu·ci·na·tion (hə-lo͞o′sə-nā′shən) n. 1. a. Perception of visual, auditory, tactile, olfactory, or gustatory experiences without an external stimulus ...
hallucination | BehaveNet
This psychotic symptom found in a variety of serious mental disorders involves sensory perceptual distortions, for example seeing (visual), hearing (auditory ...
Auditory hallucination - Wikipedia, the free encyclopedia
A paracusia, or auditory hallucination, is a form of hallucination that involves perceiving sounds without auditory stimulus. Auditory hallucinations need to be ...
hallucination | psychology | Britannica.com
Hallucination, Daumier, Honoré: Caricature of hallucinating physician National Library of Medicine, Bethesda, Maryland the experience of perceiving objects or events ...
Hallucination Treatments - News Medical
Hallucinations can be extremely distressing but they are usually the result of an identifiable cause that a sufferer may be able to receive treatment for.
Hypnagogic hallucination - Neurological disorders
Hypnagogic hallucination is episodes of seeing and hearing things as one is falling asleep. Hypnagogic hallucinations can occur at sleep onset.
Oliver Sacks: What hallucination reveals about our minds ...
Neurologist and author Oliver Sacks brings our attention to Charles Bonnet syndrome -- when visually impaired people experience lucid hallucinations. He describes the ...