PurposeIn this article, the authors explore the emotional dimension of the strategies that researchers carry out to foster collaboration within research groups in science.Design/methodology/approachThe authors have carried out fieldwork based on semi-structured interviews with members of high-performance research groups, supported by the analysis of ethnographic observations in the local work contexts of several of these groups.FindingsAs a result, the authors start from the representations of the principal investigators interviewed about collaboration, as a dynamic between the individuals involved and the group, to describe two forms of leadership strategies: ego-centered or group. Hence, the authors highlight that the emotional work of IPs consists of combining both strategies by activating and deactivating affection, warmth and spontaneity in interactions. The authors conclude by reviewing the contributions and some potential lines of study.Research limitations/implicationsThe main contributions and conclusions must be regarded considering several limitations of our work. First, the authors have focused on high-performance groups, so it would be expected that the research groups that do not have the support of European Research Council (ERC) do not present the observed dynamics. Concerning the analysis, the authors have focused on the link between situational (personal interaction) and organizational scales. Although the authors have attended social factors that imply the structure and changes of the professional sector of science (Whitley, 2000, 2014), future publications will allow the authors to delve into relationships on a broader scale, associating collaboration patterns and discursive positions. The authors will focus on (1) roles and social profiles and (2) features of scientific culture and its recent configuration.Practical implicationsThe authors affirm that the emotional field is key to understanding how groups and individuals respond to these profound changes. In their work, scientific professionals do not only act based on rational and instrumental criteria but also driven by habits, affective networks and inertia of their organizational cultures. In this paper, the authors provide theoretical and practical keys to understand the complexity that collaboration creates within research groups as a contradictory reality that consists of a constant movement of individuals and the group.Social implicationsAs many of the interviewees expressed, there are no adequate spaces to learn and reflect on leadership and collaboration in science. The authors are science workers who are responsible for imagining and deciding how the authors want their research groups to function. Institutions must ensure the means so that this task can be carried out. Hopefully, this article will contribute to this irrevocable project.Originality/valueThe authors’ aim is to understand how well-known groups operate in their field, with a high level of resources and productivity, in order to identify and promote cutting-edge strategies in different scientific branches. Moreover, the authors want to recognize the importance of institutional infrastructures. For this reason, giving them a place in the framework of management studies allows to submit this issue to public debate for a wide audience of social scientists. Moreover, this permits to inquire about cross-disciplinary subjects, such as social and organizational psychology, sociology of work, studies about science and management studies.