noun
hyperarousal
Psychiatric term for a heightened state of alertness, often a symptom of PTSD. Characterized by exaggerated startle response, hypervigilance, and sleep disturbances.
PTSDの患者は過覚醒の症状を示すことが多い。
Patients with PTSD often show symptoms of hyperarousal.
過覚醒状態では、小さな物音にも過剰に反応してしまう。
In a hyperarousal state, one overreacts even to small noises.