Submitted by michael on Thu, 01/01/2015 - 16:03 URL http://news.stanford.edu/news/2009/august24/multitask-research-study-082409.html Think you can talk on the phone, send an instant message and read your e-mail all at once? Stanford researchers say even trying may impair your cognitive control. Tags Think you can talk on the phone send an instant message and read your e-mail all at once? Stanford researchers say even trying may impair your cognitive control.