The World Without Rose-Colored Glasses
People who have suffered from major depression are significantly better than other people at seeing a metaphorical forest, while the non-depressed are more alert to the trees, according to this study published a few months back in The Journal of Neuroscience. (I was led there by this New Scientist piece.) The paper suggests that depression isn't just a disease of emotion and thought--that it also alters perception.
Julie Golomb, a neuroscientist at Yale, ran a perceptual test on two groups: one of people with no history of depression and one of people who had recovered from two or more bouts of the disease. The volunteers were supposed to watch white bars moving across a gray background, and then decide which direction the motion had taken. The recovered depressed people did better when the image was large and strongly contrasted with the background; when the image was small and low-contrast, it was the non-depressives who scored best.
Golomb and her colleagues believe the explanation lies in the neurotransmitter Gamma-Aminobutyric Acid (GABA), which is in relatively short supply in people with a history of depression. GABA is involved in the non-depressed person's ability to suppress the big picture in order to concentrate on a detail in the field of vision. Less GABA, the researchers reasoned, means less big-picture suppression. The experiment was designed to confirm this hypothesis, which it did. It's an elegant reminder that vision happens in the brain, not the eye.
Swipe right to make the connections that could change your career.
Swipe right. Match. Meet over coffee or set up a call.
No, we aren't talking about Tinder. Introducing Shapr, a free app that helps people with synergistic professional goals and skill sets easily meet and collaborate.
Is it "perverseness," the "death drive," or something else?
A growing body of research shows promising signs that the keto diet might be able to improve mental health.
- The keto diet is known to be an effective tool for weight loss, however its effects on mental health remain largely unclear.
- Recent studies suggests that the keto diet might be an effective tool for treating depression, and clearing up so-called "brain fog," though scientists caution more research is necessary before it can be recommended as a treatment.
- Any experiments with the keto diet are best done in conjunction with a doctor, considering some people face problems when transitioning to the low-carb diet.
It's up to us humans to re-humanize our world. An economy that prioritizes growth and profits over humanity has led to digital platforms that "strip the topsoil" of human behavior, whole industries, and the planet, giving less and less back. And only we can save us.
- It's an all-hands-on-deck moment in the arc of civilization.
- Everyone has a choice: Do you want to try to earn enough money to insulate yourself from the world you're creating— or do you want to make the world a place you don't have to insulate yourself from?
SMARTER FASTER trademarks owned by The Big Think, Inc. All rights reserved.