What Your Smartphone Knows That Your Mother Doesn’t
Can Your Smartphone Be Used to Detect Depression?
It’s always there, in your pocket or purse or on your desk, quietly collecting information. And apparently, when it comes to depression, there’s quite a lot your smartphone knows about you.
According to a small study from Northwestern Medicine, that data from your smartphone can predict with eerie 87 percent accuracy whether you’re suffering from depression or not.
The telling signs: You spend more time on your smartphone and less time leaving the house, and you visit very few places each day.
Related: Smartphone Notifications Are Killing Our Concentration
The researchers used Craigslist to find 40 test subjects between the ages of 19 and 58, and outfitted their smartphones with an app to monitor their location and usage. The individuals took a questionnaire that measured signs of depression; half of the subjects had troubling symptoms and half did not. Using GPS, the phones tracked the subjects’ movements and locations every five minutes. The subjects also were asked questions about their mood at different points during the day.
These factors were then correlated with the test subjects’ original depression test scores. And the results were uncanny. Depressed people used their phones more often and for longer periods of time —an average of 68 minutes a day. By comparison, the individuals who didn’t show signs of depression spent only 17 minutes on theirs. Researchers attributed the increased use of the phone to task avoidance, another symptom of depressed people.
Perhaps more significant than the findings of this small study — only 28 of the 40 subjects had enough data to be studied — is the potential the researchers felt that smartphones could play in future medical diagnosis.
When loaded up with the correct sensors, the smartphone can be used to detect a person’s emotional states, and monitor moods, without the user having to utter a word. It also has the ability to offer suggestions to reinforce positive behaviors when depression is detected. The results of the study were published in the Journal of Medical Internet Research yesterday, but one conclusion was becoming increasingly evident even before the report came out: Smartphones — and the sensors they now contain — just keep getting smarter.
Number of the Day: $132,900
The cap on Social Security payroll taxes will rise to $132,900 next year, an increase of 3.5 percent. (Earnings up to that level are subject to the Social Security tax.) The increase will affect about 11.6 million workers, Politico reports. Beneficiaries are also getting a boost, with a 2.8 percent cost-of-living increase coming in 2019.
Photo of the Day: Kanye West at the White House
This is 2018: Kanye West visited President Trump at the White House Thursday and made a rambling 10-minute statement that aired on TV news networks. West’s lunch with the president was supposed to focus on clemency, crime in his hometown of Chicago and economic investment in urban areas, but his Oval Office rant veered into the bizarre. And since this is the world we live in, we’ll also point out that West apparently became “the first person to ever publicly say 'mother-f***er' in the Oval Office.”
Trump called Kanye’s monologue “pretty impressive.”
“That was bonkers,” MSNBC’s Ali Velshi said afterward.
Again, this is 2018.
Chart of the Day: GDP Growth Before and After the Tax Bill
President Trump and the rest of the GOP are celebrating the recent burst in economic growth in the wake of the tax cuts, with the president claiming that it’s unprecedented and defies what the experts were predicting just a year ago. But Rex Nutting of MarketWatch points out that elevated growth rates over a few quarters have been seen plenty of times in recent years, and the extra growth generated by the Republican tax cuts was predicted by most economists, including those at the Congressional Budget Office, whose revised projections are shown below.
Are States Ready for the Next Downturn?
The Great Recession hit state budgets hard, but nearly half are now prepared to weather the next modest downturn. Moody’s Analytics says that 23 states have enough reserves to meet budget shortfalls in a moderate economic contraction, up from just 16 last year, Bloomberg reports. Another 10 states are close. The map below shows which states are within 1 percent of their funding needs for their rainy day funds (in green) and which states are falling short.
Chart of the Day: Evolving Price of the F-35
The 2019 National Defense Authorization Act signed in August included 77 F-35 Lightning II jets for the Defense Department, but Congress decided to bump up that number in the defense spending bill finalized this week, for a total of 93 in the next fiscal year – 16 more than requested by the Pentagon. Here’s a look from Forbes at the evolving per unit cost of the stealth jet, which is expected to eventually fall to roughly $80 million when full-rate production begins in the next few years.
