Preface to the Special Issue on Immersive Environments: Challenges, Research and New Developments

Immersion could be defined as a subjective impression of participating in a comprehensive, realistic experience [1]. However, immersion should not be treated as a unique property, as it is achieved from a complex interaction of representational fidelity and learner interaction, holding a dependency on other aspects of the environment [2, 3]. The use of immersive environments which create a feeling of ?presence? naturally allows for more complex social interactions and designed experiences [4]. A particular use of these technologies is in educational settings, where they can enhance learning experiences, foster participation, collaboration, creativity and engagement; creating huge opportunities for integration and research. Effective immersive learning experiences can be created with multiple media using myriad techniques and employing a wealth of knowledge that spans many disciplines. This includes but is not limited to computer science, user experience and media design, the learning sciences, architecture, game development, artificial intelligence, biology, medicine, and thousands of disciplinary and occupational content areas wherein immersive learning and training may be relevant. The Immersive Learning Research Network (iLRN) is ?an international organization of developers, educators, and research professionals collaborating to develop the scientific, technical, and applied potential of immersive learning? [5]. The vision of the network is to develop a comprehensive research and outreach agenda that encompasses the breadth and scope of learning potentialities, affordances and challenges of immersive learning environments. The first international conference iLRN 2015 held in Prague, Czech Republic, attracted a number of high-quality contributions. As a follow-up, this special issue was organised as an open call to seek a wider set of contributions from the research community, including extended versions of iLRN 2015 best papers.