

Antonio reported an interesting experiment on the navigation/walking performance of people. The basic message is: if you are old and you can hold on to something while walking you gain cognitive resource – if you are young this effect is not given – has quite interesting impliciations [1]. Antonio worked on more in this domain, see [2].
Over lunch we discussed some ideas related to persuasive technologies and Ulman Lindenberg hinted me some relevant authors (Bargh, Gollwitzer) and I found an interesting manual on subliminal prime on the web.
Slides from my talk: ubiquitous computing in adulthood and old age (PDF).
[1] Martin Lövdén, Michael Schellenbach, Barabra Grossmann-Hutter, Antonio Krüger, Ulman Lindenberger: Environmental topography and postural control demands shape aging-associated decrements in spatial navigation performance. Psychology and Aging, 20, 683-694, 2005 http://www.ncbi.nlm.nih.gov/pubmed/16420142
[2] Aslan, I., Schwalm, M., Baus, J., Krüger, A., and Schwartz, T. 2006. Acquisition of spatial knowledge in location aware mobile pedestrian navigation systems. In Proceedings of the 8th Conference on Human-Computer interaction with Mobile Devices and Services (Helsinki, Finland, September 12 - 15, 2006). MobileHCI '06, vol. 159. ACM, New York, NY, 105-108. DOI= http://doi.acm.org/10.1145/1152215.1152237
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