I’ve put together a few links which discuss the nature of our visual perception and how it relates (or doesn’t!) to the reality of our surroundings. Although the idea that our perception is the result of our brain interpreting sensory data wont be anything new to anyone, the extent to which the brain subjectively interprets, ignores and even adds to that information, greatly depending on the context, is less often mentioned in discussions, (probably because our brain does such a flawless job at making things appear consistent, it gets overlooked!)
Though I’m sure this is all well known stuff to most readers, the articles have some fun demos to try and highlight just how much of what you see (and don’t see) is only a clever representation that the brain has constructed to optimise and make sense of what we see. The main focus is on how we perceive colour and that it relies heavily on contrast (which is context dependant) rather than the wavelength of the light.
All in all it shows that what we see isn’t as real as we experience it and we only need a suitable representation of the world to understand it, which is great news for quantum and string theory! :)
Video presentation: The Neuroscience of Nothing (the speaker isnt the best, but the content is good!)
The Anatomy of Illusion Article
Colour Contrast is 'Seen' by the Brain Article
The Neuroscience of Illusion (full article only available with subscription, but worth reading if you can get it)
Complex Cells in the Brain's Vision Centre Tune in to Natural Scenes