In recent years, virtual realities (VRs) have become an important resource for various applications such as entertainment, architecture, therapy and learning. Previous research already investigated the effects of psychological processes such as immersion, flow and involvement in context of VRs. However, there are also more basic psychological processes such as perception and attention which both play a crucial role when creating and using VRs. Due to perceptual processes we perceive input from our environment and create a subjective reality in our mind which often does not correspond to the objective reality. Due to attentional processes, we are able to filter relevant information that is processed via our senses from all perceivable information. In the current study, we interviewed technicians about their degree of awareness and knowledge about such attentional and perceptual processes in general and within VRs. The findings showed that there is a lack of knowledge regarding these processes, suggesting that there is need for a broader discussion of the topic. This work aims to be the first step towards this direction.