Do people intuitively favor certain actions over others? In some dual-process research, reaction-time (RT) data have been used to infer that certain choices are intuitive. However, the use of behavioral or biological measures to infer mental function, popularly known as ‘reverse inference’, is problematic because it does not take into account other sources of variability in the data, such as discriminability of the choice options.
Have you ever been beaten at the classic word game Scrabble by an 85-year-old grandmother? (I have, and I’m usually pretty good at wordsmithing.) Some elderly people with super-sharp memory don’t seem to suffer the memory loss that assails most people as they age. Why?
Researchers at Wake Forest University School of Medicine have destroyed prostate cancer tumors in mice by injecting them with specially-coated, miniscule carbon tubes and then superheating the tubes with a brief zap of a laser.
Brain scientists and cardiac surgeons at Johns Hopkins have evidence from 227 heart bypass surgery patients that long-term memory losses and cognitive problems they experience are due to the underlying coronary artery disease itself and not ill after-effects from having used a heart-lung machine.
Nanoparticle delivery of diphtheria toxin-encoding DNA selectively expressed in ovarian cancer cells reduced the burden of ovarian tumors in mice, and researchers expect this therapy could be tested in humans within 18 to 24 months, according to a report in Cancer Research, a journal of the American Association for Cancer Research.
What is going on in teenagers’ brains as their drive for peer approval begins to eclipse their family affiliations? Brain scans of teens sizing each other up reveal an emotion circuit activating more in girls as they grow older, but not in boys.