New neurons are needed for new memories

Around 15 years ago, researchers discovered that the adult rodent brain contains discrete populations of stem cells which continue to divide and produce new neurons throughout life. This discovery was an important one, as it overturned a persistent dogma in neuroscience which held that the adult mammalian brain cannot regenerate. Since then, neural stem cells […]

Alpha male pheromones stimulate neurogenesis in the female brain

Females have a natural preference for mating with dominant males, because this confers a genetic advantage upon the offspring produced. When selecting a mate, animals rely on chemical cues called pheromones, which relay information about the social status and genetic health of a potential mate. Reproductive success therefore depends upon the encoding and recall of […]