Background
She was born in Ål, and was a specialist in child psychiatry.
She was born in Ål, and was a specialist in child psychiatry.
She was an assisting chief physician in Oslo from 1961 to 1972, and then ran a private clinic. She made frequent appearances in Norwegian radio. She settled in Asker.
Perstølen was a proponent of the Nynorsk written form of Norwegian.
She is known for pressuring the Bank of Norway to print Nynorsk tekst together with Bokmål on Norwegian krone bills, particularly through a series of letters to the Governor of the Bank of Norway, Knut Getz Wold.
She was a member of the board of Noregs Mållag from 1966 to 1971, and a member of the Norwegian Language Council from 1976 to 1984.