Causes of a brachial plexus injury. Brachial plexus injury (BPI) is an umbrella term for a variety of conditions that may impair function of the brachial plexus nerve network. The majority of pediatric and adult brachial plexus injuries are caused by trauma. The most common inciting events may include:auses of a brachial plexus injury. Brachial plexus injury (BPI) is an umbrella term for a variety of conditions that may impair function of the brachial plexus nerve network. The majority of pediatric and adult brachial plexus injuries are caused by trauma. The most common inciting events may include:
frustration meaning, definition, what is frustration: the feeling of being annoyed or less confident because you cannot achieve what you wantâ¦. Learn more.
According to Yale Group, frustration is the condition which exists when a goal-response suffers interference, while aggression is defined as an act whose goal-response is injury to an organism (or organism surrogate)..However, aggression is not always the response to frustration.t attempts to give an explanation as to the cause of violence. The theory, developed by John Dollard and colleagues, says that frustration causes aggression, but when the source of the frustration cannot be challenged, the aggression gets displaced onto an innocent target.