Mullen Richard, Linscott Richard J
Department of Psychological Medicine, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand.
J Nerv Ment Dis. 2010 Jan;198(1):35-8. doi: 10.1097/NMD.0b013e3181c818b2.
The relationship between delusions and overvalued ideas is uncertain, and has clinical as well as conceptual implications. This study aims to compare delusions and overvalued ideas on several characteristics that might further describe and distinguish them. A total of 24 individuals with delusions and 27 with overvalued ideas were recruited from a psychiatric service and assessed using a semistructured interview. Deluded individuals were less likely to identify what might modify their belief, less preoccupied, and less concerned about others' reactions than those with overvalued ideas. Delusions were less plausible and their onset less likely to appear reasonable. Delusions were more likely to have abrupt onset and overvalued ideas a gradual onset. Conviction and insight were similar in the 2 groups. Belief conviction and insight may be an inadequate basis for separating delusions from overvalued ideas. Abrupt onset, implausible content, and relative indifference to the opinions of others may be better distinguishing features.
妄想与超价观念之间的关系尚不确定，且具有临床及概念层面的意义。本研究旨在比较妄想与超价观念在若干特征上的差异，这些特征可能有助于进一步描述和区分它们。从一家精神科服务机构招募了24名患有妄想的个体和27名患有超价观念的个体，并通过半结构化访谈进行评估。与患有超价观念的个体相比，患有妄想的个体更不容易识别可能改变其信念的因素，更少全神贯注，也更少在意他人的反应。妄想的可信度较低，其发作看起来也不太合理。妄想更可能突然发作，而超价观念则更倾向于渐进发作。两组在坚信程度和自知力方面相似。信念坚信程度和自知力可能不足以作为区分妄想与超价观念的依据。突然发作、内容不可信以及对他人意见相对漠不关心可能是更好的区分特征。
