Affective Diary is a system that looks to broaden the scope of personal journals. It consists of 2 data collection devices (a mobile phone and bio sensors embedded in an armband) and a collation/display device (a tablet PC).
As the user goes about their day, the bio sensors capture real-time information on their physical states, including pulse, movement, skin temperature and galvanic skin response. At the end of the day, when the user syncs the collection devices to the tablet, the software interprets the bio data and represents the user’s emotional and physical states as colourful body shapes in positions ranging from fully reclined to upright. The colour of the shapes represent emotional states, with blue for the calm/rested end of the scale, red for the other aroused/agitated extreme, and gradations of purple for the states in between. Whether the shapes are more horizontal or vertical indicates that the user is moving around a lot or a little, respectively. Text messages that the user has received throughout the day, and photos they have taken are also uploaded to the diary from their mobile phone. All this bio and social data is then overlaid on a timeline of the user’s day.
The user can then navigate their diary by scrolling through this timeline and looking at sections of their day and the data associated with it. Photos they have taken are displayed in stacks according to their timestamp, and circular symbols that represent text messages received can be clicked on to reveal their contents. The user also has the ability to write or draw on these sections – perhaps notes on where they were, who they were talking to – adding another layer of narrative.
High-res screen captures can be viewed here and there is a video with more information on how to use the system here.
Affective Diary was developed in the Interaction Lab at the Swedish Institute of Computer Science (SICS) in cooperation with Microsoft Research. Participants in the project are: Kristina Höök, Martin Svensson, Anna Ståhl, Petra Sundström and Jarmo Laaksolathi, SICS, Marco Combetto, Alex Taylor and Richard Harper.