記憶喪失

1. Origins, structure, and basic meaning

• Structure: 記憶喪失 is a noun read きおくそうしつ, meaning amnesia or memory loss.
• Basic usage: Use 記憶喪失になる for entering that state and 記憶喪失の患者 to modify a patient.
  • 小説の主人公は事故を境に記憶喪失になった。 describes a novel's protagonist developing amnesia after an accident; 俳優は記憶喪失の患者に向き合う場面を練習した。 describes an actor rehearsing a scene facing a patient with amnesia.

2. Common pitfalls and similar expressions

• 事故を境に
  • を境に presents the accident as the dividing event after which the state changes.
• 記憶喪失になる
  • になる expresses the change into a state of memory loss.
• 記憶喪失の患者
  • の identifies amnesia as the patient's condition.