10 metre walk for you, Day 17/108
According to neuroscience, to understand visual perception, we must drop the notion that an image in the retina is relayed back to the brain to be displayed on a screen. What actually happens is that as soon as the rays of light are converted into neural impulses at the back of the eyes, the visual information is no longer an image.
It has been converted into neural impulses, which are symbolic description that represent the scenes and objects that had been in the image, a process analogous to the conversion of a picture into digital code.
Apparently, these never recreate the original Image anywhere in the brain but represent various components of the image, such as lines, colours, motion and so on in the language of nerve impulses.
Though these encodings start in the retina itself, they are mostly done in the brain and several areas of the brain become involved in the processes of recognition and response. These neural activities become the basis of what we see, leading neuro- science to conclude that vision occurs not in the eyes but in the brain and that our visual experience is actually a creation of our brains.
We know that perception is an interaction between what is out there and us, and it is created in relationships that occur in our brain-mind. Brain-imaging studies also indicate that the same regions of the brain are used when we imagine a scene as when we actually view one. This is why the boundary between seeing and imagining has proved elusive in neurology. We also know that the experience of beauty is not simply what is seen, it is something that is felt – it is connected with our emotions.
~ Shakti Maira, The promise of beauty and why It matters
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The garden of light
Gives enough flight
Flight is in the spark
Spark is in the dark
