A form of amnesia, selective amnesia is a rare side effect of head injuries when the victim loses certain parts of his/her memory. Not much is known because this only results when certain areas of the head are traumatized. Common elements that may be forgotten: relationships, special talents (e.g.: juggling, whistling, instrumental talents, etc.), living area, abilities in certain areas (e.g.: a new gymnast forgetting she can not cartwheel yet), and events such as concerts, shows, traumatic events (e.g.: a death/suicide of a loved one or attempt on one's own life). More research is being done into elements that are forgotten and what areas of the skull must be traumatized to cause selective amnesia.