Do patients with rapid eye movement sleep behavior disorder have a disease-specific personality?

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• 作者：Taeko Sasai^a ; ^b ; ^c ; ^{taeko_ssi@yahoo.co.jp} ; Yuichi Inoue^a ; ^b ; ^{inoue@somnology.com} ; Masato Matsuura^c
• 关键词：REM sleep behavior disorder ; NEO-PIR ; Olfactory function ; Psychological stress ; Parkinson&rsquo ; s disease
• 刊名：Parkinsonism and Related Disorders
• 出版年：2012
• 期刊代码：215_13538020
• 类别：med
• 出版时间：June, 2012
• 卷：18
• 期：5
• 页码：616-618
• 文件大小：141 K

摘要

Objectives

Rapid eye movement sleep behavior disorder (RBD) occurs idiopathically (iRBD), frequently representing a prodromal phase of Parkinson鈥檚 disease (PD). Previous reports have described that patients with PD have premorbid personality profiles such as industriousness, inflexibility, cautiousness, and lack of novelty seeking. As well, psychological stress often aggravates RBD symptoms. These phenomena encouraged us to investigate personality profiles in iRBD patients.

Methods

In this study, 53 patients with iRBD and 49 age and sex-matched healthy controls (HC) were enrolled. We used the revised version of the NEO Personality Inventory (NEO-PIR) to measure the personality of these subjects, and the 5 domains and the 30 facets of the NEO-PIR were compared between the two groups. Within the iRBD group, we investigated the association between RBD variables, e.g. the proportion of REM sleep without atonia (RWA/REM), length of RBD morbidity, frequency of vocalization or abnormal behavior, and the variables of NEO-PIR.

Results

In the patients, olfactory function was significantly lower than that of healthy controls, but the inventory differences were not significant. The inventory showed no association with any RBD variable, or the existence of aggravation of these symptoms triggered by psychological stress, or olfactory dysfunction.

Conclusion

These results suggest that RBD patients do not have a personality profile that might predict PD development. The personality profile itself cannot explain the psychological-stress-dependent aggravation of RBD symptoms.