The first, conducted by computer scientists and a psychologist at Missouri University of Science and Technology, took up the link between the Internet and depression. The people at MST had a few major findings that correlated patterns of heavy Internet usage, with some apparent statistical significance, to symptoms of depression. The first was the presence of P2P packets, an indicator of file-sharing—music and movies. The second was frequent email checking. A third example was increased “flow duration entropy,” a result of rapid switching between applications, and to that the authors of the study added increased video watching, gaming, and chatting. Their examples of depressive Internet activity overlapped nearly perfectly with most people’s idea of Internet usage.