Erstarrungsintensität 3/5

Prefrontal cortex and acute stress: what happens

Under acute stress, the prefrontal cortex (reasoning, language, planning) is inhibited in 200ms by the amygdala. You lose these functions for the stress duration. Neurological base for 'I couldn't think'.

Warum es passiert — der Mechanismus

Noradrenaline and cortisol activate alpha-1 and glucocorticoid receptors in the prefrontal cortex. Result: connectivity with other brain areas drops 40-60%. Arnsten (Nature Neuroscience 2009): under stress, subjects lose 50% working memory.

Wie das Avikzar-System darauf antwortet

The Avikzar System bypasses this block: reflexes anchored in cerebellum and basal ganglia don't need cortex. They remain 100% available even under maximum stress.

Yehouda Avikzar (10. Dan) — Der Freeze ist nicht Ihre Schuld — es ist Ihre Biologie. Aber zu trainieren, nachdem Sie einen erlebt haben, ist Ihre Verantwortung.