In a small-scale study, researchers have shown that algorithms can analyze brain scans to determine whether an individual has suicidal thoughts. During the study, the University of Pittsburgh and Carnegie Mellon University scientists mentioned words like "death," "trouble," and "carefree" to individuals undergoing fMRI scans of their brains. Apparently those kinds of words spur different brain activity in people who have suicidal thoughts compared to those who don't. The hope is that a better understanding of brain function in suicidal people could lead to better tests to assess risk of suicide and improved psychotherapy. From IEEE Spectrum:
For the study, the researchers recruited 34 volunteers between the ages of 18 and 30—half of them at risk, and the other half not at risk, of suicide. They showed the participants a series of words related to positive and negative facets of life, or words related to suicide, and asked them to think about those words.
Then the researchers recorded, with fMRI, the cerebral blood flow in the volunteers as they thought about those words, and fed the data to the algorithms, indicating which volunteers were at risk of suicide and which weren’t. The algorithms then learned what the neural signatures in the brain of a suicidal person tend to look like.
Then they tested the algorithms by giving them new neural signatures to see how well they could predict, based on learning from other subjects, whether someone was suicidal or not. The classifier did it with 91% accuracy. Separately, the classifier was able to identify, with 94% accuracy, which volunteers had actually made an attempt at suicide, versus having only thought about it.
"Machine learning of neural representations of suicide and emotion concepts identifies suicidal youth" (Nature Human Behavior)
The Community Microscope is a fully-funded, crowdfunded open source microscope hardware kit built around a digital camera: it costs $39 and snaps together in 15 minutes.
How did Twitter addict Jesse Singal become the anti-transgender spokesgoblin of his generation? When a Child Says She’s Trans continues his creepy fixation on gender-nonconforming minors. The “ex-trans” movement, similar to the discredited “ex-gay” movement, can always count on axe-grinding coverage that vastly over-represents their numbers and POV.
BeauHD, a Slashdot moderator, has Crohn's Disease, and he lives in an age of modern miracles, which means that he can have his small intestine surveyed by swallowing a tiny pill-sized camera, rather than having a scope threaded up his rectum or down his throat, or having his gut sliced open.
The Adobe Creative Cloud is home to a suite of editing tools today’s creatives count on to produce their content. Whether you’re an aspiring photographer, animator, or graphic designer, Adobe’s programs can help you in your creative pursuits, and with the Complete Adobe CC Training Bundle, you can come to grips with six of them for […]
Your pet might be photogenic, but getting them to stare long enough at your camera to snap that Instagram-worthy photo isn’t as simple as telling them to sit. Bribing your pets with their favorite treat, however, might just do the trick, and with the Adjustable Pet Selfie Smartphone Attachment, you can do just that while getting […]
The cybersecurity landscape is changing, and now one of the most effective ways to counter hacking threats is to employ another hacker against them. Commonly referred to as ethical hackers, these professionals use a cybercriminal’s tools against them, checking networks for vulnerabilities and patching them up before they can be exploited. The Certified Ethical Hacker Bootcamp […]