A picture is worth a thousand words..Is it?

All participants worked with the computer program Tribe Talk to create the same sentences with pictograms. The only difference was what the experimenter told them the program was for: to communicate with a household robot, for people with aphasia, or for a new phone application. The goal was to see whether differences in context would yield differences in usability comments, sentence completion time and electrodermal activity. All participants were able to learn to work with the computer program. Differences were found in usability comments, but not in sentence completion time or electrodermal activity. A learning effect was found for electrodernal activity.