We’ve all had days when we’ve felt invisible metaphorically, but Swedish researchers have taken it to the next level – they’ve made a man actually feel like he’s invisible.
Hallucinogenic tea brewed from South American plants might treat depression, according to a new study – but don’t start your homebrewing just yet; it’s a small study, and there are still unclear aspects about it.
Arachnophobia, the fear of spiders, is one of the most common phobias humans have. But out of all the spiders that live today, really very few are dangerous – so why is it that we fear them so much then? Researchers from Columbia University believe they might have found the answer to that – and it’s strictly related to human evolution.
A longitudinal study that spanned 26 years found that kids exposed to their Finish parents cigarette smoke are at risk of developing plaque in their carotid arteries as they grow into young adults. Previously, second-hand smoke exposure at a young age was linked to later breast cancer and a predisposition to nicotine addiction. Psychologically, having parent smokers may influence children to become smokers themselves when they grow up, triggering a cascade of other health risks.
For its annual report, the The Alzheimer’s Association in the US claims that more than half of all reported early Alzheimer’s diagnoses aren’t disclosed to the patient by doctors. This is a situation reminiscent of the 1960s and 1970s when cancer diagnoses were rarely disclosed to patients as the disease was generally seen as incurable. Like in the case of the long-gone cancer stigma, doctors may be doing more harm than good. They don’t want patients to lose hope, but being kept in the dark as to their suffering can be equally bad, if not worse.
Biologists at Tufts Universityand University of Minnesota showed for the first time that bioelectricity signaling between cells guides embryonic brain development in tadpoles. When bioelectricity signaling was hampered, the frog embryos developed abnormal brains. By using drugs that target specific ion channels, the researchers could restore normal patterns to ensure healthy brain growth. This means that careful manipulation of electricity inside the tissue can repair abnormalities caused by genetic defects. It can also be used to grow all sorts of wacky stuff.
As more and more researchers are starting to highlight the potential benefits of Psychedelic substances, one recent Norwegian campaign is aiming high: they’ve started a crowdfunding campaign to make psychedelics and MDMA legal for research and global medical use. In the past years, we’ve written about several studies documenting the positive effects that psychedelics may have, in a controlled environment and
In 2002, Jason Padgett was brutally attacked outside a karaoke bar, getting a brain concussion and a severe case of PTSD. But this may have actually been the best thing that happened to him – the brain injury turned him into a mathematical genius, and made him see the world differently, through a geometrical lens.
Memories aren’t infallible – even for those with photographic memory – so, more often than not, they’ll seem fuzzy. And the older these get, the fuzzier they’re recalled. Mixing names, faces and events in your head can sometimes be embarrassing, but at least we’re not alone. Seems like bees have false memories too, according to a study made by British researchers at Queen Mary University of London. Previously, false memories had been induced in other animals, like mice, but this is the first time natural false memories have been shown to happen. Research like this might help us, in time, understand how false memories are formed and, in a more general sense, how we recall events.
Rats remember acts of kindness done by other rats, and are more helpful to individuals who previously helped them. It’s not clear if they do this because they are grateful or if they are trying to make sure that they will get helped in the future as well, but their behavior gives scientists a new understanding of animal social behavior.