Exam 38 · 第38回 · 認知症の理解 (Understanding Dementia)
Question 81 問81
次の記述のうち，認知症（dementia）のある人にみられる妄想の説明として，最も適切なものを1つ選びなさい。
- 自分でしまい忘れた物が見つからず，誰かが盗んだと思い込むのは，嫉妬妄想である。
- 孫と会って話をしたにもかかわらず，孫にずっと会わせてもらえていないと主張するのは，カプグラ症候群である。
- 介護支援専門員（ケアマネジャー）と妻が話しているのを見て，妻の浮気相手だと思い込むのは，幻の同居人である。
- 家族など身近な人がよく似た偽物と入れ替わっていると主張するのは，被害妄想である。
- 身体的疾患がないにもかかわらず，自分が病気だと思い込むのは，心気妄想である。
Translation
Which of the following is the most appropriate description of a delusion seen in people with dementia (認知症)? Choose one.
- When a person cannot find something they put away themselves and believes someone stole it, this is a delusion of jealousy (嫉妬妄想).
- When a person talks with their grandchild but insists they have not been allowed to see the grandchild for a long time, this is Capgras syndrome (カプグラ症候群).
- When a person sees their wife talking with the care manager (ケアマネジャー) and believes the care manager is the wife's lover, this is phantom boarder syndrome (幻の同居人).
- When a person insists that a family member or someone close has been replaced by a similar-looking impostor, this is a persecutory delusion (被害妄想).
- When a person has no physical illness but believes they are sick, this is a delusion of illness (心気妄想).
Show answer and explanation
Answer: 5
Why 5 is correct
A person with no physical illness who strongly believes they have a serious illness has a delusion of illness (心気妄想). So answer 5 is correct.
Why 1 is wrong
Believing that someone stole something you put away yourself is called a 'delusion of theft' (物盗られ妄想), a type of persecutory delusion (被害妄想). A delusion of jealousy (嫉妬妄想) is believing that your spouse is having an affair.
Why 2 is wrong
This happens because of a memory disorder (記憶障害) — forgetting that you met and talked with your grandchild. It is not Capgras syndrome (カプグラ症候群). Capgras syndrome is believing that someone close to you has been replaced by a similar-looking impostor.
Why 3 is wrong
Believing your wife is having an affair is a delusion of jealousy (嫉妬妄想). Phantom boarder syndrome (幻の同居人) is believing that someone who does not live in the house is living there with you.
Why 4 is wrong
Believing that someone close to you has been replaced by an impostor is Capgras syndrome (カプグラ症候群). A persecutory delusion (被害妄想) is believing that you are being harmed, for example that something was stolen from you or that people are saying bad things about you.
Key point
Believing you are ill when your body has no illness is delusion of illness (心気妄想).
Key terms
- 心気妄想
- A delusion of believing you are sick when you have no illness.
- 嫉妬妄想
- A delusion of believing your spouse is having an affair.
- 被害妄想
- A delusion of believing others are harming you. Delusion of theft is one type.
- カプグラ症候群
- A condition of believing someone close to you has been replaced by a similar-looking impostor.
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Exams 36–38, all 13 subjects, with furigana and an English explanation of every choice. The subject 「認知症の理解」 is free.