This particular function of memory is called prospective memory. The ability to perform these tasks is a fundamental aspect of our daily lives. For instance, individuals who cant remember to turn off the stove or take medication will require daily assistance. In the last two decades there has been an increased focus on prospective memory. Much of the increased interest can be attributed to the publication of a study by Einstein and McDaniel in 1990 that laid the cornerstone for the expansion of prospective memory research through the introduction of a laboratory paradigm for investigating prospective memory. In addition, Einstein and McDaniel's study spurred an early and continuing interest in adult age differences in prospective memory.