This article discusses whether attachment experiences may shape the quality and consistency of individuals' attempts to explore the minds of significant others, a process Dr. Lyons-Ruth refers to as intersubjectivity. Specific commentary focuses on whether individuals with an insecure or disorganized attachment organization continue to engage in intersubjective processes over the lifespan. To help illuminate these questions, the work of the University College London group on reflective functioning is discussed and directions for future research are suggested.