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(a) cognitive: impaired memory and concentration; confusion and disorientation; intrusive thoughts and memories, denial (namely, that the event happened), hypervigilance and hyperarousal (a state of feeling too aroused, with a profound fear of another incident);
认知反应：记忆力和专注力减弱；混乱和迷惑感；侵入性思维和记忆、否认(即否认该事件发生过)、过度警觉和易受激惹(高度警觉状态，深恐事件再度发生)；
