Dr. Hagen Lehmann Research Fellow Science and Technology Research Institute University of Hertfordshire College Lane Campus Hatfield AL10 9AB United Kingdom Phone: +44 01707 28-1133 Email: h.lehmann [at] herts.ac.uk

I am a research fellow in the Adaptive Systems Research Group at the University of Hertfordshire. Currently I am involved in different projects. As part of the iTalk project I conduct research to examine mechanisms of natural language aquisition with Dr. Joe Saunders and Dr. Yo Sato, and investigate human mutual gaze and turn taking behaviour in conversations in order to help to design more natural looking robot gaze behaviours for human-robot interaction with Dr. Frank Broz. I was also involved in the AURORA project and the IROMEC project conducting experiments on the effects of human-robot interaction on children with autism and other cognitive disabilities.

Before starting my work with robots at Science and Technology Research Center at the University of Hertfordshire I wrote my Master thesis in Psychology at the Max Planck Institute for Evolutionary Anthropology with Prof. Micheal Tomasello, and a PhD in Computer Science at the University of Bath with Dr. Joanna Bryson. My main fields of interests are the evolution of social behavior, social cognition and culture, intelligence and consciousness, artificial intelligence and robotics, human-robot interaction, self-organization and cybernetics. Recently I became increasingly interested in the works of Francesco Varela and Heinz von Foerster.

Curriculum vitae (pdf)

Academic Activities:

Workshops

• Co-organizer of the Gaze in HRI: From Modeling to Communication workshop at the 7th ACM/IEEE International Conference on Human-Robot Interaction 2012, Boston, USA
• Co-organizer of the Social gaze: From human-human to human-robot interaction workshop at the IEEE ICDL-EPIROB conference 2011, Frankfurt, Germany

Summer Schools

• Participant at the iCub Summer School - Veni Vidi Vici 2011
• Participant at the CITEC Summer School 2011.

Publications:

Journal Articles

• Lohan K., Pitsch K., Rohlfing K., Saunders J., Lehmann H., Nehaniv C., Fischer K., & Wrede B. (2012). Tutor spotter: Proposing a feature set and evaluating system. International Journal of Social Robotics, 4 (2): 131 - 146


• Bryson J.J., Ando Y. & Lehmann H. (2007). Agent-based models as scientific methodology: A case study analysing primate social behaviour. Proceedings of the Royal Society: B -Biology, 362 (1485): 1685 - 1698


• Tomasello M., Hare B., Lehmann H. & Josep Call (2007). Reliance on head versus eyes in the gaze following of great apes and human infants: the cooperative eye hypothesis. Journal of Human Evolution, 52 (3): 314 - 320

Book Chapters

• Bryson J.J., Ando Y. and Lehmann H. (2011). Agent-based models as scientific methodology: a case study analyzing the DomWorld theory of primate social structure and female dominance. In: Seth, A.; Prescott, T.; and Bryson, J.J. eds. Modelling Natural Action Selection. Cambridge University Press

Conference Proceedings

• Lehmann H., Iacono I., Robins B., Marti P., & Dautenhahn K. (2011). Make it move: Playing Cause and Effect Games With A Robot Companion for Children With Cognitive Disabilities. Proceedings of ECCE 2011


• Iacono I., Lehmann H., Marti P., Robins B., & Dautenhahn K. (2011). Robots as Social Mediators for Children with Autism - A Preliminary Analysis Comparing Two Different Robotic Platforms. Proceedings of ICDL-EpiRob 2011 : IEEE Conference on Development and Learning, and Epigenetic Robotics


• Lohan K., Pitsch K., Rohlfing K., Fischer K., Saunders J., Lehmann H., Nehaniv C., & Wrede B. (2011). Contingency allows the robot to spot the tutor and to learn from interaction. Proceedings of ICDL-EpiRob 2011 : IEEE Conference on Development and Learning, and Epigenetic Robotics


• Saunders J., Lehmann H., Sato Y., & Nehaniv C. (2011). Towards Using Prosody to Scaffold Lexical Meaning in Robots. Proceedings of ICDL-EpiRob 2011 : IEEE Conference on Development and Learning, and Epigenetic Robotics


• Broz F., Lehmann H., Nehaniv C.L., & Dautenhahn K. (2011) Towards Human-Robot Mutual Gaze. Presented at Special Session on Social Gaze: From Human-Human to Human-Robot Interaction at IEEE International Conference on Development and Learning and Epigenetic Robotics (ICDL-EpiRob), August 24, 2011, Frankfurt, Germany.


• Broz F., Lehmann H., Nehaniv C.L., & Dautenhahn K. (2011) Automated Analysis of Mutual Gaze in Human Conversational Pairs. IUI 2011: Workshop on Eye Gaze in Intelligent Human Machine Interaction


• Lehmann H., Wang J.J. & Bryson J.J. (2005) Tolerance and Sexual Attraction in Despotic Societies: A Replication and Analysis of Hemelrijk 2002. Proceedings of Modelling Natural Action Selection 2005 (pdf)

Workshop Papers

• Broz F., Lehmann H., Nehaniv C.L., & Dautenhahn K. (2012) Mutual gaze, personality, and familiarity: dual eye-tracking during conversation. Presented at the workshop on: ''Gaze in HRI: From Modeling to Communication'' at the 7th ACM/IEEE International Conference on Human-Robot Interaction (HRI 2012), March 5th, 2012, Boston, USA.


• Robins B., Dautenhahn K., & Lehmann H. (2012) Tactile interaction and imitation games in human-robot interaction studies with children with autism. Presented at the workshop on: ''Advances in Tactile Sensing and Touch based Human-Robot Interaction'' at the 7th ACM/IEEE International Conference on Human-Robot Interaction (HRI 2012), March 5th, 2012, Boston, USA.


• Broz F., Lehmann H., Nehaniv C.L., & Dautenhahn K. (2011) Towards Human-Robot Mutual Gaze. Presented at Special Session on ''Social Gaze: From Human-Human to Human-Robot Interaction'' at IEEE International Conference on Development and Learning and Epigenetic Robotics (ICDL-EpiRob), August 24th, 2011, Frankfurt, Germany.

Meeting Abstracts

• Lehmann H. & Bryson J.J. (2009). A Unified Account of the Primate Tolerance Spectrum . Folia Primatologica, 80 (2): 124


• Schmidt T. & Lehmann H. (2008). A neuro-physiological model of the evolution of goal-oriented behavior based on the development of agency. International Journal of Psychology, 43 (3-4): 474


• Lehmann H. & Bryson J.J. (2008). Ultimate causes of egalitarianism: Factors influencing social order in Macaques and other primates. International Journal of Psychology, 43 (3-4): 778


• Lehmann H. & Bryson J.J. (2008). Explaining the despotic/egalitarian continuum. Folia Primatologica, 79 (5): 350

Invited Talks

• Examples for the application of agent-based modelling in behavioural ecology - University of Bath 2009
• A unified account of the primate tolerance spectrum - EFP Zurich 2009
• Agenten basierte Modelle in den Sozialwissenschaften - University of Applied Arts Vienna 2008
• Possible reasons for the differentiation of social behaviour in Macaques - University of Vienna 2008
• Testing the socio-ecological model - Charles University Prague 2007
• Social dominance and social organization in Macaques - University of Bath 2007
• Modelling intuition and intentionality from a neuropsychological perspective - ICCP Laval 2006

Posters

• Mutual Gaze - Implications for Human-Robot Interaction (ICDL-EPIROB Frankfurt 2011)
• Robots as Social Mediators for Children with Autism (ICDL-EPIROB Frankfurt 2011)
• Tolerance and Sexual Attraction in Despotic Societies (euCognition Nice 2006)
• How to build a brain - The social aspect in evolution (AISB - Adaptation in Artificial and Biological Systems Bristol 2006)
• Machine Consciousness - Is intentionality a precondition for self-awareness? (International Conference on Philosophy and Computers Laval 2006)
• Gaze Following in Great Apes And Human Children (Animal Social Learning St. Andrews 2005)

Robots:

Groups and Organisations:

• Institute of Electrical and Electronics Engineers - IEEE
• European Network for the Advancement of Artificial Cognitive Systems, Interaction and Robotics - EUCog
• Gesellschaft für Informatik e.V. - GI
• Artificial Models of Natural Intelligence - AMONI
• SETI@home