Researchers have suggested feeling sad can affect how the brain perceives colour.

The study, published in Psychological Science, examined the responses to colour of more than 200 university undergraduates after they had watched a sad or amusing video clip.

In the first test, 127 students were split into two groups – one watching a sad clip and the other a happy one – and then tested on their ability to identify colours.

It found that people who had watched the sad animated video did not accurately identify as many colours as the other group.

Read the rest of the article on the website of The Independent: click HERE.