Neurocognitive symptoms are common in individuals with somatic symptom and related disorders (SSRD), but little is known about the specific impairments in neurocognitive domains in patients with conversion disorder (CD)/functional neurological disorder (FND). This study examines neurocognitive functioning in patients with CD/FND compared to patients with other SSRD. The sample consisted of 318 patients. Twenty‐nine patients were diagnosed with CD/FND, mean age 42.4, standard deviation (SD) = 13.8 years, 79.3% women, and 289 patients had other SSRD (mean age 42.1, SD = 13.3, 60.2% women). Patients completed a neuropsychological test battery that addressed a broad range of neurocognitive domains, including information processing speed, attention and executive functioning. Patients with CD/FND had clinically significant neurocognitive deficits in all neurocognitive domains based on normative data comparison. Patients with CD/FND also performed significantly worse than patients with other SSRD on information processing speed (Digit Symbol Substitution Test (V = .115, p = .035), Stroop Color–Word Test (SCWT) card 1 (V = .190, p = .006), and SCWT card 2 (V = .244, p < .001). No CD/FND vs. other SSRD differences were observed in other neurocognitive domains. These findings indicate the patients with CD/FND perform worse on information processing speed tests compared to patients with other SSRD.

中文翻译：

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转换障碍/功能性神经障碍患者的神经认知功能

神经认知症状在患有躯体症状和相关疾病 (SSRD) 的个体中很常见，但对转换障碍 (CD)/功能性神经障碍 (FND) 患者的神经认知领域的特定损伤知之甚少。本研究检查了 CD/FND 患者与其他 SSRD 患者的神经认知功能。样本包括 318 名患者。29 名患者被诊断为 CD/FND，平均年龄 42.4，标准差 (SD)  = 13.8 岁，79.3% 为女性，289 名患者患有其他 SSRD（平均年龄 42.1，SD = 13.3，60.2% 是女性）。患者完成了一项神经心理学测试，该测试涉及广泛的神经认知领域，包括信息处理速度、注意力和执行功能。根据规范性数据比较，CD/FND 患者在所有神经认知领域都存在具有临床意义的神经认知缺陷。CD/FND 患者在信息处理速度（数字符号替换测试 ( V  = .115, p  = .035)、Stroop Color-Word Test (SCWT) 卡 1 ( V  = .190 ) 方面的表现也明显差于其他 SSRD 患者, p  = .006) 和 SCWT 卡 2 ( V  = .244, p < .001）。在其他神经认知域中没有观察到 CD/FND 与其他 SSRD 的差异。这些发现表明，与其他 SSRD 患者相比，CD/FND 患者在信息处理速度测试中的表现更差。