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Phone data could predict with 87% accuracy whether someone had depressive symptoms. "We found that the more time people spend on
Phone data could predict with 87% accuracy whether someone had depressive symptoms. "We found that the more time people spend on
admin
2016-01-29
52
问题
Phone data could predict with 87% accuracy whether someone had depressive symptoms. "We found that the more time people spend on their phones, the more likely they are to be more depressed," says David Mohr, one of the authors of the study and director of the Center for Behavioral Intervention Technologies at Northwestern University Feinberg School of Medicine. Northwestern researchers recruited 28 people ages 19 -58 from Craigslist and souped up their smartphones with location-and-usage monitoring software. At the start of the study, they took a standardized questionnaire that measures depressive symptoms; half of the subjects had symptoms of depression, and half did not. For two weeks, the phones tracked GPS location information every five minutes and pinged the users with questions about their mood several times a day. The phone data the researchers collected were rich; how many places the participants visited each day, how much time they spent in each of those places and how frequently they used their phones. The researchers then correlated this objective data with their depression test scores.
What they hoped to find was a connection between the objective markers of behavior—such as where the people were and how often they changed locations—and their depression test results. Mohr and his team indeed found a strong correlation between these objective markers and depression. Phone data were even better than the daily questions the users answered to predict depression test results. "People who tend to spend more time in just one or two places—like people who stay at home or go to work and go back home—are more likely to have higher depression scores," says Mohr. When a person moved around was important, too; people who stuck to a regular pattern of movement tended to be less depressed, they found. " This fits into a larger body of clinical research showing that people with mental health problems in general, their circadian rhythms get thrown off," Mohr says. "Usually it’s looked at with sleep and activity, but here we’re seeing it also in terms of their movement through geographic space. " When people get depressed, he says, their mood may pull them off their routine.
Depressed people, too, spent an average of 68 minutes using their phones each day, while people without depression only spent about 17 minutes on their phones. The software didn’t track what people did on their phones—just whether or not they were using it. But the authors have some ideas about why they saw phone activity rise with depression. " One of the things we see when people are depressed is that people tend to start avoiding tasks or things they have to do, particularly when they’re uncomfortable," Mohr explains. "Using the phone, going in and using an App, is kind of a distraction. "
It’s preliminary research, but Mohr hopes to add to the number of smartphone sensors and use these to subtly help manage depression and spot it more quickly, without requiring any work on behalf of the user. " Being able to get people timely treatment for depression is a critical failure point in public health right now," Mohr says. An App that people download on their phones—without having to answer any questions—may help pinpoint their depressive states more effectively and help them get treatment.
What is Mohr’s viewpoint about using smartphones to measure depression?
选项
A、It is critical to develop App that can automatically identify phone users’ depressive conditions.
B、People’s mind state is recognized by using their movement instead of sleep and activity.
C、The future smartphone App will not only recognize mark of depression but cure the symptom.
D、Smartphones not only facilitate people’s communication but also maintain public health.
答案
A
解析
细节题。根据题干定位到全文,定位词为:Mohr和viewpoint。最后一段第一句指出“莫尔希望在智能手机上装上一定数量的传感器,并利用这些传感器巧妙地帮助管理抑郁,并且在不需要询问用户任何问题的情况下快速地发现抑郁症状”,由此可知未来开发可以自动识别用户抑郁情况的App很关键,故[A]正确。第二段倒数第二句指出“通常我们只通过观察睡眠与活动来关注人们的抑郁情况,但是在这儿我们也通过观察人们在地理空间内的行动来关注他们的抑郁情况”,由此可知,研究人员并未用关注一个人地理位置的变化完全代替对睡眠和活动的关注,而只是作为一个补充,故[B]不选;[C]前半部分正确,但后半部分说可以治愈抑郁症状,过于绝对,手机只是可以帮助识别用户的抑郁情况,本身不具有治愈功能,故[C]不选;[D]说手机可以维护公共健康,说法过于绝对,故排除。
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0
考研英语一
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