About the Reviewers

Clifford Champion has a broad background in software engineering, with years of experience spanning 3D games, Internet applications, and artificial intelligence. He holds degrees in mathematics and computer science from UCLA and UCSD, respectively. In the past, Clifford worked for video game technology company Havok (now part of Microsoft), and interactive media and design company PlainJoe Studios. Currently, he leads a software team at zSpace (zspace.com), a VR company specializing in 3D for classrooms and industry.

Clifford can be found on Twitter at @duckmaestro and welcomes discussions on any topic.

Dr. Sebastian T. Koenig received his PhD in human interface technology from the University of Canterbury, New Zealand, developing a framework for individualized virtual reality cognitive rehabilitation. He obtained his diploma in psychology from the University of Regensburg, Germany, in the areas of clinical neuropsychology and virtual reality rehabilitation.

Sebastian is the founder and CEO of Katana Simulations, where he oversees the design, development, and evaluation of cognitive assessment and training simulations. His professional experience spans over 10 years of clinical work in cognitive rehabilitation and over 8 years of virtual reality research, development, and user testing. He has extensive experience as a speaker at international conferences and as a reviewer of scientific publications in the areas of rehabilitation, cognitive psychology, neuropsychology, software engineering, game development, game user research, and virtual reality.

Sebastian has developed numerous software applications for cognitive assessment and training. For his work on the virtual memory task, he was awarded the prestigious Laval Virtual Award in 2011, for the Medicine and Health category. Other applications of his include the virtual reality executive function assessment in collaboration with the Kessler Foundation, New Jersey, USA, and the patent-pending Microsoft Kinect-based motor and cognitive training JewelMine/Mystic Isle at the USC Institute for Creative Technologies, California, USA.

He maintains the website at www.virtualgamelab.com, which features his research and his software development projects. His website also contains a comprehensive list of tutorials for the Unity game engine.