Tongue-tied: When bilinguals switch languages involuntarily



For reasons that will probably be obvious I find the research mentioned here quite interesting. When I’m extremely tired, my brain’s switch that controls which language to use ceases to work properly, usually much to the amusement of my wife. And it’s also quite interesting that when I swear I automatically mix words from both languages (German and English) - I guess in that case the switch does get circumvented altogether.