If you search that book for "cognitive load is defined" you get the snippet:
> "Cognitive load" is defined loosely as the amount of mental strain put on a person during the performance of some task, often at least partially due to the constraints placed on the performance of that task...
http://books.google.com/books?id=srxOAAAAYAAJ&q=%22cogni...
If you search that book for "cognitive load is defined" you get the snippet:
> "Cognitive load" is defined loosely as the amount of mental strain put on a person during the performance of some task, often at least partially due to the constraints placed on the performance of that task...