It's something that most of us learn as toddlers. But a new test will have you questioning everything you thought you knew about colours. The 'What's My JND?' test shows you two colours and asks you ...

It's something that most of us learn as toddlers. But a new test will have you questioning everything you thought you knew about colours. The 'What's My JND?' test shows you two colours and asks you ...

Sir, I am grateful to the authors of the opinion piece on screening dental students' deficiencies in colour perception (BDJ 2016;221: 227–228). Not because I agree with their thesis, but because the ...