Halloran, J., Fitzpatrick, G., Rogers, Y. and Marshall, P. (2004) Does it matter if you don't know who's talking? Multiplayer gaming with voiceover IP. To appear in Proceedings of CHI 2004.
Voiceover IP (VoIP) now makes it possible for people in distributed online multiplayer games to talk to each other. This might not only influence game performance, but also social interaction. However, using VoIP in multiplayer games can often make it hard to know who is talking, an issue that other researchers have found to be problematic. In a 10-week study of a fixed group of adult gamers, we found that not knowing who is talking affects game performance differently according to the type of game.