Says a University of Oregon researcher.

We wished to know what separates the two? During four assessments, participants provided self-reports of drug use in the previous thirty days. Four working storage tests also were conducted: Corsi block tapping, in which subjects viewed similar blocks that lit up randomly on a screen and tapped each container backwards order of the light sequence; a digit-span check where numbers shown are to be repeated in reverse purchase; a letter two-back again test, where subjects identify specific letters in time-delicate sequences; and a spatial working-memory job where hidden tokens should be found quickly within units of four to eight randomly positioned boxes on a computer screen.Related StoriesResilience-based programs might help LGBT youths deal with bad stressorsEstradiol fluctuation may enhance emotional sensitivity to psychosocial tension during menopausal transitionComputerised cognitive behavioural therapy apt to be ineffective in depression treatment The authors also mentioned that patients of all ages had high prices of disability in fundamental activities of daily living -32 percent at three months and 27 percent at 12 months. High rates of disability in instrumental actions of daily living were also observed-26 percent at 3 months and 23 percent at 12 months. These rates are even worse than those observed in people with mild dementia *, says Dr Jackson.