By SH postponed actentions
Synapses within an actention modules dedicated to manifest responses of distress-type become unable to relay distress driving excitatory messages when they are blocked (or "gated") by SHI-threat detecting inhibitory neural functures dedicated to prevent maladaptive distress.
What the ÆPT (abbreviation/expression/pragmatically tailored) notion of "SH" (short for Specific Hibernation) refers to is the relatively muted metabolism of neurons located downstream of synapses that are kept blocked and prevented from relaying incoming excitatory distress driving messages.
SH does not refer to the effect of inhibitory neural functions that aids survival by blocking excitatory messages corresponding to external and internal sources of innocuous stimulation.