Tanya Flores recently published an article titled “Velar Palatalization in Chilean Public Speech” in Glossa: a journal of general linguistics. The article presents the effects of age group affiliation and conversation style on the palatalization of /x/ in Chilean Spanish. http://dx.doi.org/10.5334/gjgl.105
Dr. Flores is assistant professor of Spanish Linguistics in the Department of World Languages and Cultures. Her research focuses on phonetic variation that is motivated by social factors.
(Spectrograms are examples of the two primary variants of /x/ in the /xe/ context).