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長者變不快樂 或失智症先兆
 

長者變不快樂 或失智症先兆

長者患認知障礙症前,往往沒有病徵,但外國一項研究發現,如長者變得不快樂,有可能是患認知障礙症的先兆,因認知障礙症之一的額顳葉失智症(FTD)患者發病前,會因為大腦愉悅系統開始惡化而喪失快樂感,研究結果料有助於FTD的治療。

大腦愉悅系統惡化

澳洲悉尼大學招募了172人進行研究,包括87名FTD患者及34名阿茲海默症患者。研究人員首先請照顧者評估患者在發病前是否經常感快樂,並比較患者在診斷前後的幸福程度,發現FTD患者在發病後的幸福評分,比起發病前顯著下降,但阿茲海默症患者並無類似情況。

研究人員其後發現,相關病徵是與患者大腦的愉悅系統惡化有關,患者在記憶或認知發生變化之前,便可能已經失去愉悅感,例如會做出在幼兒面前講粗俗笑話等脫序行為,此研究料有助於FTD的治療。

 

資料來源:東方日報 15-04-2021

選文來自:香港E大夫/醫大夫

 

 

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