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May 9, 2015

Graphene’s Prospects in Biosensing Just Got a Boost

you may think you know a lot about the inner workings of your phone, but your phone may have an even better picture of your mental state.A new study published yesterday in the Journal of Medical Internet Research by researchers from Northwestern University details how GPS and usage sensors can determine whether or not a user is exhibiting signs of depression. The report detailed that researchers were able to use the data from smartphones to determine a participant’s feelings of depression with 86.5 percent accuracy.The study tracked 40 participants who carried phones with a sensor data acquisition app installed, called Purple Robot, that describes itself as a “sensing and scripting application that enables the creation of context-aware behavioral interventions and experiences.”The report details that the researchers then gauged which participants in the group had feelings of depression through a self-reported questionnaire: