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Hallucination - Wikipedia
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.
https://en.wikipedia.org/wiki/Hallucination

Closed-eye hallucination - Wikipedia
Closed-eye hallucinations and closed-eye visualizations (CEV) are a distinct class of hallucination. These types of hallucinations generally only occur when one's ...
https://en.wikipedia.org/wiki/Closed-eye_hallucination

Somatic hallucination | definition of somatic ...
hallucination [hah-loo″sĭ-na´shun] a sensory impression (sight, touch, sound, smell, or taste) that has no basis in external stimulation. Hallucinations can have ...
http://medical-dictionary.thefreedictionary.com/somatic+hallucination

Hallucinations: Types, Causes & Diagnosis - Healthline
Hallucinations are sensations that appear real but are created by your mind. They can affect all of your senses. Learn about the types, causes, and treatments.
http://www.healthline.com/symptom/hallucinations

The 19th Century Doctor Who Mapped His Hallucinations ...
Most accounts credit the British neurologist Gordon Holmes with that later discovery. Holmes studied the visual deficits of hundreds of soldiers who’d suffered ...
http://phenomena.nationalgeographic.com/2016/06/13/the-19th-century-doctor-who-mapped-his-hallucinations/

Hallucinations | definition of Hallucinations by Medical ...
Hallucinations Definition Hallucinations are false or distorted sensory experiences that appear to be real perceptions. These sensory impressions are generated by the ...
http://medical-dictionary.thefreedictionary.com/Hallucinations

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 ...
http://www.ted.com/talks/oliver_sacks_what_hallucination_reveals_about_our_minds

Neurobiology of a hallucination – Neurophilosophy
Hallucinations are often associated with psychiatric conditions such as schizophrenia or with LSD and related drugs. Hearing voices is a characteristic ...
http://scienceblogs.com/neurophilosophy/2008/09/11/neurobiology-of-a-hallucination/

Visual - definition of visual by The Free Dictionary
vi·su·al (vĭzh′o͞o-əl) adj. 1. Of or relating to the sense of sight: a visual organ; visual receptors on the retina. 2. Seen or able to be seen by the eye ...
http://www.thefreedictionary.com/visual

Eye - Optical illusion - YouTube
This video has been carefully designed to create a strong natural hallucination based on the motion aftereffect illusion (MAE). Use full screen and HD for ...
http://www.youtube.com/watch?v=tVgOLWVYytM

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