The researchers induced anger in 30 subjects using the version adapted to Spanish of the "Anger Induction" (AI) procedure , consisting of 50 first-person sentences that reflect everyday situations that provoke anger. Before and immediately after anger induction, they measured heart rate and blood pressure, testosterone and cortisol levels, asymmetric brain activation, general mood, and subjective experience of the emotion of anger.
The results, published in the journal Hormones and Behavior , reveal that anger causes profound changes in the mood of the subjects and in different psychobiological parameters . Heart rate, blood pressure and testosterone increase, but cortisol (stress hormone) decreases. Simultaneously, an increase in right ear advantage occurs, indicating greater activation of the left hemisphere . In addition, when we get angry we tend to show a natural tendency to get close to what generates anger in order to try to eliminate it.
