Health, Mind & Brain:
Scientists achieved astonishing results when training a student with a memory training programme in a landmark experiment in 1982. After 44 weeks of practice, the student, dubbed SF, expanded his ability to remember digits from seven numbers to 82. However, this remarkable ability did not extend beyond digits – they also tried with consonants.
Bacteria possess even more tools to protect themselves from antibiotics than previously thought, according to our latest research. The ability of microbes to avoid death at the hands of antibiotics is a worldwide concern. Our study illustrates how bacteria directly combat the presence of antibiotics using newly identified defence systems.
Iridium—the world’s second densest metal—can kill cancer cells by filling them with a deadly version of oxygen, while leaving healthy tissue unharmed.
In the long view, modern history is the story of increasing rights of control over your body – for instance, in matters of reproduction, sex, where you live and whom you marry. Medical experimentation is supposed to be following the same historical trend – increasing rights of autonomy for those whose bodies are used for research.
My optometrist once told me that a research job can be tough on the eyes. When you aren’t reading articles, you’re staring at data or puzzling your way though code on some blinking monitor. I wear contacts. She told me to bring my glasses to work, as a backup in case my eyes tired out.
Certain visual learning takes hold in the brain during sleep, new research suggests.Remember those “Magic Eye” posters from the 1990s? You let your eyes relax, and out of the tessellating structures, a 3D image of a dolphin or a yin yang or a shark would emerge.
Benjamin Franklin once quipped: ‘There are three things extremely hard: steel, a diamond, and to know oneself.’ Every decision we make, from pinpointing the source of a faint sound to choosing a new job, comes with a degree of confidence that we have made the right call. If confidence is sufficiently low, we might change our minds and reverse our decision. Now scientists are using these choice reversals to study the first inklings of self-knowledge. Changes of mind, it turns out, reflect a precisely tuned process for monitoring our stream of thoughts.
Existence of “silent engrams” suggests that existing models of memory formation should be revised.
Eyes play a prominent role in our daily social encounters and are sometimes metaphorically referred to as windows to our souls. There now is compelling evidence to support the notion that much information about another person’s mind can be gleaned from his or her eyes.
Many of us have experienced the effects of sleep deprivation: feeling tired and cranky, or finding it hard to concentrate. Sleep is more important for our brains than you may realize.