Human heart cells and tissues grown in the laboratory from stem cells promise to accelerate the development of drugs and treatments for heart disease, but they currently take weeks or months to grow.

Evidence is provided suggesting that aggregate neural activity at an early stage of visual processing (V1) can directly contribute to perceptual decisions in humans.

A virus that is big enough to be seen under an ordinary light microscope co-opts its host’s systems with the help of potentially purloined genes. The researchers found that the virus makes a complex ...