HomeArticlesSeeing in the Dark Seeing in the Dark By Joseph Donaldson January 5, 2020 Articles, Blog 11 Comments Tags:Brain, cognitive, Cognitive Science (School/tradition), eye, eye-tracking, image, mental, Mind, motion, neural, Neurology, neuroscience, perception, pyschology, science, University of Rochester, vision, visual Related Posts Raspberry Pi 4 Model B Lower Back Pain Relief Juice: A Tasty Placebo! Wearing Eye Patches for our Baby! About Author admin 11 Comments Fornik Tsai November 3, 2013 Human vision is really amazing. Reply Surf steve November 3, 2013 Aren't they just following the movements of their own hands? I'd be more convinced if they were using someone else's hand and not their own. Reply Maurice Biermans November 3, 2013 Also surprising is they find that synesthetes were strikingly better. Synesthetes are people who blend senses in daily lives. Like see colors when they hear music. I wonder. Could it be that genius thinkers are a kind of synesthete? Where normally one thinking proces works on its own, now multiple thinking units work in tandem? Could this same neuro proces lie at the base of multiple personality disorders, i.e. not in tandem 🙂 ? I would love to see research done to find this underlying proces. Reply Aaron McBride November 4, 2013 It sounds like the people are "seeing" their hand in the sense that they really experience it, but their eyes aren't actually picking up light from the hand. Qualia without sense. I wouldn't totally rule out imagination though. Knill says "You can't just imagine a target and get smooth eye movement", but see Wikipedia's article on Smooth Pursuit (section on the absence of a visible target). Still, from the article, it sounds like something might be going on. Reply NNK November 4, 2013 IR/heat? Please redo study to rule out possibility that some individuals are more sensitive (through the eye? via facial skin?) to heat/infrared, and thus may be able to detect indistinct images. Use other persons' hands. Measure temperature of the other persons' hands. Mask off the face, not just the eyes. Pass in front of the subjects "targets" of varying size and temperature which are NOT controlled by or known to the subject. Reply Akash Tewani November 5, 2013 This is trippppy stufff 😉 Reply Mew Wew January 16, 2014 Maybe they just have good kinesthesia. Reply americasgotrandom March 17, 2014 Your brain knows where your body parts are at all times. you are only "seeing" your hand in the dark because your brain rationalizes what its supposed to look like. The woman only moved her eyes like that because she knew she was not moving her hand. Reply Gregory Kemi September 12, 2018 I can do it like some people can, and can even see in totally darkened rooms, with the eyelids closed. Reply Angel Hernandez July 16, 2019 I remember when me and old of mine where laying in bed in complete darkness.And she said how many fingers im holding.I forgot the numbers she said but she keeped tripping out i was getting them right.I was able to see the fingers but they where realy dark compared to the walls around us.Just wanted to share. Reply MoP December 12, 2019 To understand seeing in sparcity/no light) it's helpful to know mathematicians & neuroscientists have recently created the first anatomically accurate model that explains how vision is possible. Much of what we “see” we conjure in our heads. As data from the eye passes through a bottleneck in arriving @ the brain’s visual cortex, which dynamically (rhythmically synchronizes) the sparse signal. The visual cortex "is" a mind of its own. After entering the cerebral cortex, sensory info spreads through six different horizontal neuronal layers interconnected by vertical axonal projections. It's believed through these projections, layers influence each other's response to sensory stimuli, but the specific role of each layer in cortical processing is now being better understood by these kinds of dynamical systems models (of gamma rhythm patterning). Discerning how six layers in the primary visual cortex play a crucial role in controlling the gain of visually-evoked activity in neurons of the upper layers without changing their tuning to orientation. This modulation of coordinated action of layer six intra-cortical projections — to superficial layers & deep projections to the thalamus is explained in Rhythm & Synchrony in a Cortical Network Model.Journal of Neuroscience 9 January 2019, 39 (2) 379; DOI: https://doi.org/10.1523/JNEUROSCI.2901-18.2018 Reply Add a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment:*Name:* Email Address:* Save my name, email, and website in this browser for the next time I comment.