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  1. https://www.youtube.com/watch?v=XbQ08Ixczvo

    Norah Jones – Black Hole Sun
  2. Noin puolet ihmisitä näkee vaihtelevasti jotain ja se toinen puoli ei.
    (itselläni ilmiö on vahva ja välillä jopa hiukan häiritsevän häikäisevä)
    ((synestesia vahvistaa ilmiötä, mutta itselläni ei sellaista pitäisi varsinaisesti olla))

    Tässä tutkimuslöytöjä:

    https://news.vanderbilt.edu/2013/10/30/dark-brain-sees/

    https://pmc.ncbi.nlm.nih.gov/articles/PMC4079122/

    "AI-yhteenveto The Spelunker Illusion is a phenomenon where people can "see" their own hand or body moving in total, pitch-black darkness. It is a learned sensory association where the brain cross-wires motor commands and visual expectations, tricking you into visualizing your hand's movement when no light is present.Key CharacteristicsSelf-Motion Only: You can only see your own hand. If a friend waves their hand in front of your face in complete darkness, you will see nothing.The Sensation: People who experience it describe seeing a faint blur or a dimly glowing outline, similar to looking at a distant light source.Synesthetic Cross-Talk: Research shows that the illusion stems from cross-modal processing, where motor signals from your moving hand trigger a mild visual response in the brain. People with synesthesia, for example, report significantly clearer visual forms and much smoother eye-tracking movements in the dark.The Science Behind ItStudies published in journals like Psychological Science (e.g., from the University of Rochester) have confirmed that about 50% of people experience this illusion. When you move your hand in the light, your brain continually pairs the motor commands of that movement with visual feedback. Over a lifetime of experience, your brain learns this association so well that if you remove the light, the motor command alone is sometimes enough to generate a phantom visual sensation.Participants who reported seeing their hands were also tracked using computerized eye-trackers. The results demonstrated they were able to smoothly track their invisible hands in the darkness much more accurately than those who experienced no visual sensation.To explore more about the cognitive experiments related to this, you can read the full study breakdown in the University of Rochester News Center."
  3. :)