Measuring speed of mental replay of movies reveals new insights into how we access memoriesResearchers have discovered that 'fully detailed' memories are stored in the brain, but people access this information at different speeds and levels of detail, with people accessing memories 'forward' that is recalling older information first. They quickly skip episodic blocks of information when recalling events in summary - for example, telling a friend about the plot of a movie they have seen, but can also delve into greater levels of detail at a slower speed when asked about a particular movie scene.