Blue moods may be connected to our perception of the colour
by Sarah Kaplan for the Washington Post from on (#M7DD)
Dopamine, which stimulates the pleasure centre in the brain, is also involved in transmitting visual information
"Feeling blue" might be more than just a metaphor. Indeed, how we feel about the world can play a huge role in how we see it, according to a study in the journal Psychological Science. Feeling sad can keep us from seeing in certain colours, as though we live in Dorothy's Kansas. But a good mood can bring those colours back into the world, just like a tornado trip to Oz.
Related: How we all could benefit from synaesthesia
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