Is multitasking a myth? Here's what an expert says about divided attention.

Busy working mom Erika Robinson is all too familiar with the multitasking world we live in.

"We have to come home to think about what we gotta do for ourselves and what we gotta do for our children. Cook,get the clothes ready, make sure they do their homework," Robinson told CBS News. 

While busy lives have many of us juggling multiple tasks at once, are we really multitasking?