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Horizon’s latest documentary, ‘Illusions’, uncovers the fascinating science behind how our brains process and interpret reality. We explore the amazing tricks that play on our senses – color, taste, sound – and learn why they fool us.
It turns out that it is incredibly easy to manipulate taste by simply altering the colors of food or drinks – a finding that has huge implications for gastro-science. We also learn just how unreliable color can be when it comes to interpreting sound.
But perhaps most interestingly, Horizon discovers that all of this trickery is actually helping scientists create a new understanding of how our senses work in harmony rather than individually. Take Daniel Kish for example; he lost his sight at a young age but was able to develop an alternative visual sense by learning to echolocate like a bat using clicks of his tongue! His story has even led researchers to perform MRI scans in an attempt to understand if Kish’s brain has rewired itself in order for him to interpret sound as sight.
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