Multi User Interaction and Control

Collaborative transportation and joint body: Humans posses a notion about the spatial extent of their own body (body scheme) that helps them navigate through the physical environment. Hence, tall people duck when walking through a small door, and narrow passages are crossed sideways. Here we ask how flexible this body scheme is and whether it can be extended to an integrated body scheme (joint body) after prolonged collaboration. For this, pairs actively carry a stretcher through a visually virtual environment. The individuals are thus connected at a fixed distance, and their walking paths are compared to individual behavior.
Attention: Humans and many animals coordinate their behaviour in various tasks in order to achieve a shared goal. While this has been shown in many instances of goal-directed behaviour, it is currently unknown whether coordination takes place also during foraging, scanning, and visual search behaviour of groups. Here, we investigated whether two persons performing together a standard visual search task exhibit a regular spatial preference to which they primarily direct their attention. We vary the nature of the search task with instruction and emphasize either competition, collaboration, or neutrality between the participants while verbal communication is usually prohibited. 
Learning from each other: Manual and motor activity often facilitates recognition and learning. The question here is whether humans have a similar benefit when observing others during their motor activity. We use an object recognition paradigm and compare recognition performance after own examination to observed examination of others.  In addition we are interested in how learning changes in conditions where two individuals are engaged in the task simultaneously.
Dynamic control: The control of a dynamic system is especially challenging for humans. Could the control of a dynamic system be simplified by collaboration? In a dynamic balancing task we investigate the strategies employed during joint control and the extent to which each controller’s behaviour depends on the co-actor’s actions.
Last updated: Tuesday, 07.05.2013