Kevin Duffy is professor in the Department of Psychology and Neuroscience at Â鶹´«Ã½.
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What do blind people experience in their dreams? — James
Humans are extremely visual. Nearly . Most of the brain networks responsible for providing vision .
This means that that strongly rely on vision.
Throughout life, we associate most of our interactions with visual images rather than with experiences from our other senses such as hearing or smell.
For those of us with normal vision, . To understand what blind people experience in their dreams, we must distinguish the experiences of those who were blind at birth from those that became blind later in life.
Just as vivid and imaginative
Humans born without sight are not able to collect visual experiences, so . As a result, people with blindness at birth develop an amazing ability to understand the world through the collection of experiences and memories that come from these non-visual senses.
The dreams of a person who has been without sight since birth can be just as vivid and imaginative as those of someone with normal vision. They are unique, however, because their .
While a person with normal vision will dream about a familiar friend using visual memories of shape, lighting and colour, a blind person will associate the same friend with a unique combination of experiences from their non-visual senses that act to represent that friend.
In other words, people blind at birth have similar overall dreaming experiences but .
The dream experience of a person who lost vision later in life is very different than someone who never had vision. People that lose vision later in life had the ability to collect many visual experiences that can appear in their dreams and in a manner very similar to a sighted person.
Interestingly — and perhaps expected — and as they collect more experiences without vision.
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