The problem arises in the interpretive layer: the prefrontal cortex. In a standard joyful event, the body’s SNS activation is quickly overridden by the release of oxytocin and dopamine, creating a "calm arousal." However, in individuals prone to HHP, the opposite occurs. The sudden spike in physiological arousal (racing heart, rapid breathing) is mislabeled by an over-vigilant insula (the brain’s interoceptive cortex) as an incoming panic attack. The brain asks: Why is my heart exploding? When the conscious mind answers Because I am happy , but the subconscious threat-detection system answers Because we are in danger , the resulting dissonance is .
Upon exploration, A recalls that as a child, her alcoholic father would routinely return home from celebrations in a violent rage. Her brain learned: Celebration is the trigger for catastrophe. The HHP episodes are not failures of joy; they are successful executions of a childhood survival program in an adult context. happy heart panic
Affective Neuroscience / Positive Psychology / Psychosomatic Medicine The problem arises in the interpretive layer: the