硬直強度 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'.

なぜ起こるのか — メカニズム

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.

アヴィクザール体系の応答

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.

イェフダ・アヴィクザール(10段) — フリーズはあなたのせいではありません — それは生物学です。しかし、それを経験した後に訓練するのは、あなたの責任です。