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.
Magnitude of Frustration is the intensity of blocking goal directed behavior. According to Dollardâs Frustration-Aggression Theory, how intense the situation, for it may become the antecedent to an aggressive act (1994).For example one study had confederates brake into a queue and said, âExcuse meâ or nothing at all.ccording to Dollardâs Frustration-Aggression Theory, how intense the situation, for it may become the antecedent to an aggressive act (1994). For example one study had confederates brake into a queue and said, âExcuse meâ or nothing at all.