'Foreign accent syndrome' is apparently a real, if rare, neurological disorder. I suppose that the phonological processes in the brain have been altered, so that it isn't about someone 'adopting' a foreign accent but rather that the qualities of the produced sounds seem to hearers to adhere more closely to a different phonological system.
#phonology #IrishAccent #ForeignAccentSyndrome
BBC News - US cancer patient developed 'uncontrollable' Irish accent
https://www.bbc.co.uk/news/world-us-canada-64671894
#phonology #irishaccent #foreignaccentsyndrome