Social rank in human and nonhuman animals is signaled by a variety of behaviors and phenotypes. In this research, we examined whether a sartorial manipulation of social class would engender class-consistent behavior and physiology during dyadic interactions. Male participants donned clothing that signaled either upper-class (business-suit) or lower-class (sweatpants) rank prior to engaging in a...

We address the problem of tracking continuous levels of a participant’s activation, valence and dominance during the course of affective dyadic interactions, where participants may be speaking, listening or doing neither. To this end, we extract detailed and intuitive descriptions of each participant’s body movements, posture and behavior towards his interlocutor, and speech information. We app...

Are humans too generous? The discovery that subjects choose to incur costs to allocate benefits to others in anonymous, one-shot economic games has posed an unsolved challenge to models of economic and evolutionary rationality. Using agent-based simulations, we show that such generosity is the necessary byproduct of selection on decision systems for regulating dyadic reciprocity under condition...

Students of international conflict are increasingly aware of the potential problem of spatial dependence. Much of international behavior is linked spatially and temporally. Yet, many dyadic analyses of interstate interactions assume independence among units. Although there exist some technical and statistical solutions for addressing spatial dependence, directly modeling the dependence generati...

Human communication is a dynamical and interactive process that naturally induces an active flow of interpersonal coordination, and synchrony, along various behavioral dimensions. Assessing and characterizing the temporal dynamics of synchrony during an interaction is essential for fully understanding the human communication mechanisms. In this work, we focus on uncovering the temporal variabil...

Non-verbal communication is the basis of animal interactions. In dyadic leader-follower interactions, leaders master the ability to carve their motor behaviour in order to 'signal' their future actions and internal plans while these signals influence the behaviour of follower partners, who automatically tend to imitate the leader even in complementary interactions. Despite their usefulness, sig...

Social networks are now ubiquitous and most of them contain interactions involving multiple actors (groups) like author collaborations, teams or emails in an organizations, etc. Hypergraphs are natural structures to effectively capture multi-actor interactions which conventional dyadic graphs fail to capture. In this work the problem of predicting collaborations is addressed while modeling the ...

Gaze is recognized as one of the most important cues for the analysis of the cognitive behaviors of a person such as the attention displayed towards objects or people, their interactions, functionality and causality patterns. In this short paper, we present our investigations towards the development of 3D gaze sensing solutions from consumer RGB-D sensors, including their use for the inference ...