We use this in my lab and I think you this is a lot more complex than better or worse on the task as a whole. Certain kind sof stimuli will interact with subject memory in different ways. So even if there's research saying another species is better or worse it probably depends on what is being recalled.
I think I was more thinking about the possible direct mapping of the physical device to the computational device implying that it may not be possible to make make a more intelligent device from a device base.
What is your lab doing? Are you mapping physical brains?
We don't really do brain mapping in the sense that would apply to nanotechnology. The actual mechanism of working memory is pretty hard to establish in humans at this level.
