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真有歇斯底里? 大腦造影現形
Posted on Tuesday, January 09 @ 16:59:39 CST by c00hpl00

「歇斯底里」診斷已有4,000年歷史,應用範圍也很廣,但過去50年來,這個名詞愈來愈少人提。 二十世紀大半時間裡,歇斯里底神經醫學基礎的探討未受重視。不過,隨著捕捉腦部活動影像的能力增強,情況已經生變。科學家現在能以功能神經影像學診斷技術,如單光子電腦斷層掃描(SPECT)和正子斷層掃瞄(PET)監控腦部活動的變化。雖然歇斯底里和腦部機能的關連尚未完全明瞭,但新的研究已經找到這個最難懂、爭議性最大、歷史也最悠久的毛病的生理證據,身心再度合而為一。

歇斯底里病人會有其他性質各異的症狀,影響某些自主感覺或運動功能,例如眼睛看不見、麻痺或疾病發作。 歇斯底里病人有兩個共通點,第一,他們不是裝病,第二,儘管經過徹底檢查,醫師還是找不出來他們在醫學上到底有什麼毛病。

 科學家利用新技術,可以看到腦部機能出現混亂的情形,描出的生理地圖,可能呈現現代歇斯底里病人的心理狀態。研究成果顯示,腦部的情緒結構可能改變感覺或運動神經迴路的功能。  

內容摘自聯合報網路城邦


 

 

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