According to new research, learning becomes more difficult as we get older because our brains get too full for new information. This may be due, in part, to finding that with advanced age we get less sleep during the stage in which we don’t dream. Both studies are reported in the prestigious Nature family of journals.
The first high-resolution structural connection map of the human cerebral cortex was published earlier this month in the journal PLoS Biology. The study reveals regions that are highly connected and central, forming a structural core network . Intriguingly, this core network consists of many areas that are more active when we’re at rest than when we’re engaged in a task that requires concentration.