Editing Blindsight (section)

=== Evidence in animals ===
In a 1995 experiment, researchers attempted to show that monkeys with lesions in or even wholly removed striate cortexes also experienced blindsight. To study this, they had the monkeys complete tasks similar to those commonly used for human subjects. The monkeys were placed in front of a monitor and taught to indicate whether a stationary object or nothing was present in their visual field when a tone was played. Then the monkeys performed the same task except the stationary objects were presented outside of their visual field. The monkeys performed very similar to human participants and were unable to perceive the presence of stationary objects outside of their visual field.<ref>{{cite journal |vauthors=Cowey A, Stoerig P |date=January 1995 |title=Blindsight in monkeys |url=http://l3d.cs.colorado.edu/~ctg/classes/lib/cogsci/cowey.pdf |url-status=dead |journal=Nature |volume=373 |issue=6511 |pages=247–9 |bibcode=1995Natur.373..247C |doi=10.1038/373247a0 |pmid=7816139 |s2cid=4269412 |archive-url=https://web.archive.org/web/20120501114729/http://l3d.cs.colorado.edu/~ctg/classes/lib/cogsci/cowey.pdf |archive-date=2012-05-01 |access-date=2018-02-05}}</ref>

Another 1995 study by the same group sought to prove that monkeys could also be conscious of movement in their deficit visual field despite not being consciously aware of the presence of an object there. To do this, researchers used another standard test for humans which was similar to the previous study except moving objects were presented in the deficit visual field. Starting from the center of the deficit visual field, the object would either move up, down, or to the right. The monkeys performed identically to humans on the test, getting them right almost every time. This showed that the monkey's ability to detect movement is separate from their ability to consciously detect an object in their deficit visual field, and gave further evidence for the claim that damage to the striate cortex plays a large role in causing the disorder.<ref>{{cite journal |vauthors=Stoerig P, Cowey A |date=March 1997 |title=Blindsight in man and monkey |journal=Brain |volume=120 ( Pt 3) |issue=3 |pages=535–59 |doi=10.1093/brain/120.3.535 |pmid=9126063 |doi-access=free}}{{dead link|date=August 2020|bot=medic}}{{cbignore|bot=medic}}</ref>

Several years later, another study compared and contrasted the data collected from monkeys and that of a specific human patient with blindsight, GY. His striate cortical region was damaged through [[Physical trauma|trauma]] at the age of eight, though for the most part he retained full functionality, GY was not consciously aware of anything in his right visual field. In the monkeys, the striate cortex of the left hemisphere was surgically removed. By comparing the test results of both GY and the monkeys, the researchers concluded that similar patterns of responses to stimuli in the "blind" visual field can be found in both species.<ref>{{cite journal |vauthors=Cowey A, Alexander I, Stoerig P |date=February 2008 |title=A blindsight conundrum: how to respond when there isn't a correct response |journal=Neuropsychologia |volume=46 |issue=3 |pages=870–8 |doi=10.1016/j.neuropsychologia.2007.11.031 |pmid=18201733 |s2cid=20790934}}</ref>