Leticia Santín Gallego is a pre-doctoral researcher in the Faculty of Philology at the UNED. She holds a degree in Modern Languages and their Literatures with a major in French and German from the Universidad de Oviedo, a master's degree in language science and Hispanic linguistics from the UNED and is part of the team of the CORPAT-LOCALEs project: oral language and linguistic change in Spanish atlases.