This interesting research suggests the earliest differences between brains exposed to one language and brains exposed to two. No more fears about confusion and delay. <http://www.nytimes.com/2011/10/11/health/views/11klass.html?_r=2&nl=health& emc=healthupdateema10> http://www.nytimes.com/2011/10/11/health/views/11klass.html?_r=2&nl=health&e mc=healthupdateema10 Hagit Lahav