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 ?
Karin, who made her debut with Blindsighted in 2001, said the late Swedish author Stieg Larsson's Millennium trilogy, which has sold more than 30 million copies, shows how male thriller writers are treated differently.
Decades later, as a business writer, I quoted what I thought was "Don't be blindsighted." Had I been a football fan, I might have been acquainted with the expression "blindsided." As for song lyrics, while listening to the score of a Victorian-era musical, I interpreted the Cockney-accented words "Always merry and bright" as the somewhat contradictory--or perhaps redundant--"Always marry a bride."
The rush for financial fortune, however, is often blindsighted, and the buyer (or patient in this case) should beware.
Another debut, which goes straight for the Patricia Cornwell market, is Karin Slaughter's Blindsighted (Century, pounds 9.99) and it does so very impressively.
"After the law was passed in 1995, the point was mute," another wrote on a different assignment "Consumers were blindsighted," was still another whopper.