Facial interactions are prominent behaviors in primates. Primate facial signaling, which includes the expression of emotions, mimicking of facial movements, and gaze interactions, is visually dominated. Correspondingly, in primate brains an elaborate network of face processing areas exists within visual cortex. But other mammals also communicate through facial interactions using additional sens...

tightly correlated with emission of 22 kHz calls (Figure 1D). This is expected as call emission is mechanistically linked with breathing [5,7]. Accordingly, rats maintained long uninterrupted exhalations to accommodate continuous emission of prolonged 22 kHz calls (Figure 1A bottom; Figure S2A). Thus, the observed changes in sniff-cycle duration following face-toface interactions were mirroring...

We describe the development and pilot testing by university faculty of Wearable Tag Clouds as a CSCL technology. Tag Clouds are ‘at-a-glance’ information visualizations that, in the wearable form developed here, repurpose social web technologies to support face-to-face interactions. Exploration of collaborative prospects is facilitated by visualizing the substantive emphases of researchers’ wri...

Face features are hardly processed in isolation; they rather strongly interact over space. Spatial interactions are strong at upright, but not inverted orientation. Recent evidence indicated spatial interactions root in the low spatial frequencies (LSF) of face stimulus. Here, a balanced congruency paradigm was employed with upright and inverted filtered faces to circumvent the limits of previo...

In this paper, we describe the use of the sociometer, a wearable sensor package, for measuring face-to-face interactions between people. We develop methods for learning the structure and dynamics of human communication networks. Knowledge of how people interact is important in many disciplines, e.g. organizational behavior, social network analysis and knowledge management applications such as e...