Recently many friends of mine lost their love ones, I truly feel sorry to hear that.
Scientists from University of Oxford published an article in PLoS ONE journal showing that playing tetris may reduce traumatic stress. 40 volunteers were given to watch a film featuring traumatic images of injuries. The participants were then assigned randomly to do nothing or play tetris for 30 minutes. Those who played tetris had less ‘flashbacks’ to the traumatic images.
“Flashback” can be triggered by many signals, such as sound, sight, or smell. Dr Emily Holmes thought that tetris game can be used as a treatment for patients who suffered Post Traumatic Stress Disorder (PTSD). The likely explanation for the tetris-cure is that the subject’s mind is competing for the resources to play the game, and this intefere with the sensory memory usage. However the practical application of tetris on real patients may be difficult to develop. The game does not help you forget, but not thinking about things.
Other authors in this paper are Ella L. James, Thomas Coode-Bate, and Catherine Deeprose.