Category: Seeing

  • Colour. And shape…

    Colour. And shape…

    There are hundreds of thousands of distinct colors and shapes that a person can distinguish visually, but how does the brain process all of this information? Scientists previously believed that the visual system initially encodes shape and color with different sets of neurons and then combines them much later. But a new study from Salk…

  • Blind people seeing…

    Blind people seeing…

    Researchers presented 20 blind and 20 sighted adults with animal names and asked participants to: order animals by size and height; sort animals into groups based on shape, skin texture and color; pick which animal out of a group is unlike the others in shape, and choose from various texture options ("Does a hippo have…

  • Colour where there is no colour… A cosmos where there is no cosmos…

    Colour where there is no colour… A cosmos where there is no cosmos…

    Engineers have found that under the right conditions, ordinary clear water droplets on a transparent surface can produce brilliant colors, without the addition of inks or dyes. By tuning size, illumination angle, and curvature, MIT engineers can produce brilliant colors, in patterns they can predict, in otherwise transparent droplets. (1) Under the right angle, everything…

  • Colour-blind: A surprisingly common problem... [White-balancing red skies]

    Colour-blind: A surprisingly common problem... [White-balancing red skies]

    Multiple wildfires have ravaged the western United States in the past month, scattering particles of ash and smoke into the air. On Wednesday, residents across the West, woke up to a dark, bronzed sky that nearly shut out all daylight. But as people tried to capture the scene, many noticed a strange phenomenon: Certain photographs…

  • Past experiences. Looking at yourself…

    Past experiences shape what we see more than what we are looking at now. A new study argues that humans recognize what they are looking at by combining current sensory stimuli with comparisons to images stored in memory. (1) Seeing what you see. Only because you have seen other things before. Go back. And try…

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