blindsight


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blindsight

(blīnd′sīt′)
n.
The ability of a blind person to sense the presence of a light source.

blindsight

A clinical condition caused by occipital lobe injury, in which a person is functionally blind in part of their visual field, yet are capable of responding in part to visual stimuli.

Blindsight types
Type 1—subjects are completely unaware of any visual stimulus, but capture some features of the visual stimulus—e.g., location, or type of movement.

Type 2—subjects have some awareness (e.g., movement within the blind area), but no visual perception.

blindsight 

A term used to indicate someone who is totally blind but yet is able, unconsciously, to locate an object on the basis of visual cues. It indicates a lesion which has destroyed the visual cortex but in which the retinotectal pathway to the superior colliculus remains unaffected. This pathway is not involved in conscious vision but receives some information from the retina. See retinotectal pathway.
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References in periodicals archive ?
He inspired her to set up Braille Without Borders and is part of the Blindsight documentary.
The BlindSight handset has its keypad on the back - meaning people can use its functions even when they are on a call.
The most extensively studied blindsight patient has frequently reported being aware of "something" in his blind visual field, Merker notes.
q Huddersfield, Bar 1 Twenty "Dirty Music" presents AMENDS TO THE DEAD + Blueprint To A Downfall + Blindsight + Archer
Last year, she managed to fit in a tour with a theatre company, primarily around Manchester and Glasgow where she had the lead role in Blindsight.
An expert panel of judges - including executives from The Blindsight Corporation, emporia Telecom, AARP, Verizon Wireless, GreatCall and the University of California's Center for Information Technology Research in the Internet Society (CITRIS) - will select the three best ideas.
As Imogen Dickie explains, 'in blindsight there seems to be selective processing of information from objects of which the subject is not aware' (299).
Blindsight is awareness of moving targets, lights, and colors in the blind area, and this awareness can be either conscious or subconscious (called statokinetic dissociation or the Riddoch phenomenon in adults).
Earlier TN was known to have blindsight, which is the ability to detect things in the environment without being aware of seeing them.
Dubai: Blindsight, a documentary about the journey of six visually impaired children from "Braille without Borders" who attempt to climb Lhakpa Ri, a 23,000 feet high peak next to Mount Everest, is to be shown at a special charity screening in Dubai.
Wednesday: HuddsMusicScene presents The Live Sessions at Bar 1 Twenty with Grinn and Blindsight.
Ring and Cooper refute successive hypotheses that blind people's reports of visual NDEs might entail a vivid dream, an imaginative reconstruction of the experience well after the event, or the phenomena of blindsight and dermo-optic sensitivity.