Once we understand the rules that should govern bimanual interaction, we wonder if there is any other advantage to using two hands. My interest lies in the fact that while bimanual input will decrease time taken to perform tasks it should also decrease the amount you have to think about those tasks. This is because we are used to performing tasks bimanually. When I interact with a computer I feel like I have one hand tied behind my back. I have to plan and try things in order to figure out how to perform the task I am attempting when I can only manipulate items sequentially.
Bimanual input is a rich dialogue which has lots of room for growth.
While it has been of interest in the literature, no research appears to be ongoing. Thus I chose to study the cognitive impacts of two-handed input for my Masters thesis at the University of Toronto . I have written an eight page unpublished manuscript which describes the results of this study. The second experiment discussed in that manuscript has since been re-evaluated and the new results more concretly show evidence supporting the thesis of that work. I completed another study which also examined the cognitive effects of different bimanual techniques.