  Hand tracking has become an integral feature of recent generations of
immersive virtual reality head-mounted displays. With the widespread adoption
of this feature, hardware engineers and software developers are faced with an
exciting array of opportunities and a number of challenges, mostly in relation
to the human user. In this article, I outline what I see as the main
possibilities for hand tracking to add value to immersive virtual reality as
well as some of the potential challenges in the context of the psychology and
neuroscience of the human user. It is hoped that this paper serves as a roadmap
for the development of best practices in the field for the development of
subsequent generations of hand tracking and virtual reality technologies.
