Blindsight is defined as the ability of people who are cortically blind due to lesions in their striate cortex, also known as primary visual cortex or V1, to respond to visual stimuli that they do not consciously see. There are different case studies which show that even though the person is unable to see anything but the data is transferred and processed in the brain. In one of the studies the blind person was in front of a picture of a sad person (and it is proven that when we see facial expressions that indicate sadness or happiness our face muscles react to those expressions) and the recorded EMG signals of his face was also similar to those of a normal person. The question is, clearly we have the data here, can we process the data and use them to make an alternative sense or can we rebuild the eyesight that was lost without the help of the visual cortex?
I am uncertain if I fully grasp your question; however, the visual cortex is a necessity to 'see' the distal stimuli. Although we may transfer the data into the brain, there are several variant pathways which work together to ensure a conscious grasp of the image is held within the brain. If you are asking if this data can be used to input information into the unconscious layers of the brain: even if we had the brain signal processing methods set, this would leave the patient with rather useless information, as the data being brought through would remain in the unconscious.
It is possible that the sense of seeing things can be directly shortened and send these signals and deliver it directly to the brain through sensors that give the same impression
Sharing link:
https://www.google.es/url?sa=t&source=web&rct=j&url=http://www.nytimes.com/2008/12/23/health/23blin.html&ved=0ahUKEwj62bPLseDZAhWM7xQKHRA_CfIQFgglMAE&usg=AOvVaw0XSydze-BEsGWe8cHgmsxe
Regards!
I find the experience that you describe very interesting. It should mean that there is an unconscious processing of the visual information that seems to be emotional. A person whose cortex cannot recognize the face of a person could recognize her sadness unconsciously .It seems close to some psychoanalytic concept.
An unconscious processing of visual information need not be emotional necessarily. Unconscious processing of visual information can come in and out of consciousness.
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