If you find yourself shaking, it is an involuntaryresponse to your nervousness.
如果你发现自己在发抖,那是紧张心理的不自觉的反应。
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In that brief flash of a glance, his face held nothing of interest - it was as if she had called his name, and he'd looked up in involuntaryresponse, already having decided not to answer.
When threat is perceived, the RAS automatically selects related sensory input and directs it to the lower brain where the involuntaryresponse is not to think, but to react-fight, flight, or freeze.