Until this moment you probably weren't thinking about your wrist watch.
But now you are!
And activity in the part of your brain that 'feels' that wrist has increased.
The same principle applies to thought and to vision.
Click on this work of art to watch this type of phenomenon.
For more information on these artists, please click here.
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At CVI Scotland we are devoted to helping people understand cerebral visual impairments, and together working towards developing the understanding of this complex condition.