BRAIN and NERVE－神経研究の進歩67巻11号

2015年11月発行

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症例報告

音楽嗜好症（musicophilia）を呈した右側優位側頭葉萎縮の1例

著者： 品川俊一郎¹ 中山和彦¹

所属機関： ¹東京慈恵会医科大学精神医学講座

ページ範囲：P.1443 - P.1448

右側頭葉萎縮と音楽嗜好症を呈する68歳の女性例を経験した。本例では2年前より，それまでなかった流行歌など特定のジャンルの過剰な音楽聴取や歌唱行動が出現した。一方で側頭葉の顕著な萎縮に比して意味記憶障害や相貌失認が目立たず，意欲低下など軽度の行動変化が存在するのみであった。本例の音楽嗜好症は音楽という刺激に特異的に情動の変容と報酬の強化が起こり，音楽関連行動が常同行動化したものと推測された。

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