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Sep 28, 2015 · To test their ideas, scientists can use a form of non-invasive brain stimulation that disrupts different brain regions, in an attempt to induce a reversible form of blindsight in healthy...
A handful of people in the world have “blindsight”: they are blind, but their non-conscious brain can still sense their surroundings. Milina Cunning, from Wishaw in Scotland, lost her sight in...
- Into The Brain
- Blindsight Debunked?
- The Boundaries of Consciousness
Blindsight results from damage to an area of the brain called the primary visual cortex. This is one of the areas, as you might have guessed, responsible for vision. Damage to primary visual cortex can result in blindness – sometimes total, sometimes partial. So how does blindsight work? The eyes receive light and convert it into information that i...
Blindsight has generated a lot of controversy. Some philosophers and psychologists have argued that people with blindsight might be conscious of what is in front of them after all, albeit in a vague and hard-to-describe way. This suggestion presents a difficulty, because ascertaining whether someone is conscious of a particular thing is a complicat...
So, what does blindsight tell us about consciousness? Exactly how you answer this question will heavily depend on which interpretation you accept. Do you think that those who have blindsight are in some sense conscious of what is out there or not? If they’re not, then blindsight provides an exciting tool that we can use to work out exactly what con...
The advent of brain imaging, initially structural magnetic resonance imaging (MRI) and positron emission tomography (PET) but closely followed by functional MRI (fMRI), has allowed visualization of the brain activity that may underlie blindsight and unconscious vision.
Mar 1, 2015 · The neuropsychological phenomenon of blindsight has been taken to suggest that the primary visual cortex (V1) plays a unique role in visual awareness, and that extrastriate activation needs to be fed back to V1 in order for the content of that activation to be consciously perceived.
- Juha Silvanto
- 2015
The chapter vets the empirical evidence for thinking that blindsight is a kind of degraded conscious vision and show that the awareness detected with alternative procedures is a form of non- perceptual awareness. To back this claim, it examines the residual visual abilities to detect and discriminate colour found in some blindsight patients and ...
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Aug 6, 2020 · Blindsight: a strange neurological condition that could help explain consciousness. Imagine being completely blind but still being able to see. Does that sound impossible? Dr Henry Thomas writes for The Conversation exploring Blindsight.
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