Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
Mind, Brain Imaging and Neuroethics Research Unit, The Royal's Institute of Mental Health Research, University of Ottawa, Ottawa, ON, Canada.
Schizophr Res. 2024 Jan;263:282-288. doi: 10.1016/j.schres.2023.06.002. Epub 2023 Jun 16.
In the last two decades, much neuroscientific research has been done on the pathomechanisms of catatonia. However, catatonic symptoms have mainly been assessed with clinical rating scales based on observer ratings. Although catatonia is often associated with strong affective reactions, the subjective domain of catatonia has simply been neglected in scientific research.
The main objective of this study was to modify, extend and translate the original German version of the Northoff Scale for Subjective Experience in Catatonia (NSSC) and to examine its preliminary validity and reliability. Data were collected from 28 patients diagnosed with catatonia associated with another mental disorder (6A40) according to ICD-11. Descriptive statistics, correlation coefficients, internal consistency and principal component analysis were employed to address preliminary validity and reliability of the NSSC.
NSSC showed high internal consistency (Cronbach's alpha = 0.92). NSSC total scores were significantly associated with Northoff Catatonia Rating Scale (r = 0.50, p < .01) and Bush Francis Catatonia Rating Scale (r = 0.41, p < .05) thus supporting its concurrent validity. There was no significant association between NSSC total score and Positive and Negative Symptoms Scale total (r = 0.26, p = .09), Brief Psychiatric Rating Scale (r = 0.29, p = .07) and GAF (r = 0.03, p = .43) scores.
The extended version of the NSSC consists of 26 items and was developed to assess the subjective experience of catatonia patients. Preliminary validation of the NSSC revealed good psychometric properties. NSSC is a useful tool for everyday clinical work to assess the subjective experience of catatonia patients.
在过去的二十年中，大量神经科学研究致力于研究紧张症的发病机制。然而，紧张症的症状主要是通过基于观察者评估的临床评分量表来评估的。尽管紧张症通常与强烈的情感反应有关，但紧张症的主观领域在科学研究中却被简单地忽视了。
本研究的主要目的是修改、扩展和翻译原始的德语版 Northoff 紧张症主观体验量表（NSSC），并检验其初步的有效性和可靠性。数据来自根据 ICD-11 诊断为伴有其他精神障碍的紧张症患者（6A40）的 28 名患者。采用描述性统计、相关系数、内部一致性和主成分分析来确定 NSSC 的初步有效性和可靠性。
NSSC 具有较高的内部一致性（Cronbach's alpha=0.92）。NSSC 总分与 Northoff 紧张症评定量表（r=0.50，p<0.01）和 Bush Francis 紧张症评定量表（r=0.41，p<0.05）显著相关，因此支持其同时效度。NSSC 总分与阳性和阴性症状量表总分（r=0.26，p=0.09）、简明精神病评定量表（r=0.29，p=0.07）和 GAF（r=0.03，p=0.43）得分之间无显著相关性。
扩展后的 NSSC 由 26 个项目组成，旨在评估紧张症患者的主观体验。NSSC 的初步验证显示出良好的心理测量学特性。NSSC 是一种用于日常临床工作评估紧张症患者主观体验的有用工具。
