Not quite. A "task" means cognitively demanding. If you practice something until it becomes automatic it is no longer a task and thus you are not multitasking. scitechdaily.com/scientists-d... #neuroscience
Scientists Discover the Brain Can Rewire Itself To Truly MultitaskExtensive practice can rewire the brain so a learned skill runs more automatically, making some forms of true multitasking possible.scitechdaily.com