Highly adaptive AI systems, social robots, closed-loop neurotechnology and other emerging digital technologies enable new forms of highly interactive human-machine interactions or even hybrid co-actions. These emerging kinds of interactions, especially in environments and contexts where safety and privacy are paramount, require an understanding of how we should conceptualize the relationship between humans and adaptive systems. In this talk, Dr Kellmeyer will explore conceptual foundations of trust in human-AI and human-robot interactions, discuss the problem of a "sociomorphic fallacy" in social robotics and propose potential design-based approaches to fostering trust in human-AI/-robot interactions.