Quotes from the news wire:
I think one of the things that is most important about this is that, I think for the first time, we’re measuring actual behavior, depression and mental health in general is diagnosed and evaluated largely based on a person’s self-report … filtered through their own perceptions. So for the first time we actually have objective behavioral markers that are related to depression.
For example, if somebody is going out and engaged in activities like going to a restaurant or movie theater, it doesn’t necessarily have to say that’s exactly what they’re doing or the location. [The tool] can say the person is engaged in activities related to entertainment, a lot of companies are using these kinds of data for marketing purposes.