How do pitch patterns distinguish statements from yes-or-no questions in many Scandinavian languages?

In many Scandinavian languages, pitch patterns are used to distinguish between statements and yes-or-no questions. Typically, the pitch is high on the stressed syllable and falls at the end of a statement, whereas it rises at the end of a yes-or-no question.1

There are notable regional exceptions to this general pattern. In East Norwegian and some Swedish dialects, the stressed syllable is low, and the pitch often rises at the end of statements.1