While it would depend on the technician, I would call it an unconditioned response.#2. What is the "technical term" for the continued tightening of grip after an adrenalin rush that causes unintentional discharge if finger is on the "T"
It is false to assume that individuals will lack the capacity to safely and effectively operate a firearm under stress. Some individuals will have the ability to operate safely and effectively with little to no conditioning, others will require conditioning through training, and others still will be pretty much worthless despite any conditioning undertaken.
Performance under stress is largely dependent on first, the individual, and second, the conditioning/training of the individual.