Visual encoding, consolidation, and retrieval in amyotrophic lateral sclerosis: executive function as a mediator, and predictor of performance

IF 2.5 4区 医学 Q2 CLINICAL NEUROLOGY
T. Burke, K. Lonergan, Marta Pinto-Grau, M. Elamin, P. Bede, Caoifa Madden, O. Hardiman, N. Pender
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引用次数: 18

Abstract

Abstract Objective: This study aimed to illustrate the variation of non-executive cognitive processes, i.e. visual memory, considering executive dysfunction in amyotrophic lateral sclerosis (ALS). Methods: Patients with ALS (n = 203), and matched healthy controls (n = 117) completed a battery of neuropsychological tests. Sub-stratification was based on whether cognitive assessment detected no cognitive abnormalities (NCA: n = 117), multiple executive cognitive deficits (ALS-Exec; n = 56), or a comorbid frontotemporal dementia process (ALS-FTD; n = 30). The Rey-Osterrieth Complex Figure Test (ROCFT) was the main dependent variable for visual memory in this study. Results: Patients and controls significantly differed on the Copy trial (p < 0.0001: ω2 = 0.317) immediate recall (p < 0.0001: ω2 = 0.272) and delayed recall (p < 0.0001: ω2 = 0.308) of the ROCFT. Sub-stratification based on executive dysfunction revealed an association with greater executive dysfunction and lower ROCFT performance. Regression analysis predicted that premorbid IQ, executive function, and demographics predict performance on the ROCFT delayed recall trial (R2 = 0.833). Conclusions: These findings illustrate that patients without executive dysfunction do not show visual memory impairments within this cohort; that patients with executive dysfunction have poorer performance on visual memory tasks; and that the severity of executive dysfunction, as per cognitive categorisation, is related to increased visual memory impairment as tested with the ROCFT.
肌萎缩性侧索硬化症的视觉编码、巩固和检索:执行功能作为中介和表现的预测因子
摘要目的:本研究旨在说明考虑肌萎缩侧索硬化症(ALS)执行功能障碍的非执行认知过程,即视觉记忆的变化。方法:ALS患者(n = 203)和匹配的健康对照组(n = 117)完成了一系列神经心理学测试。亚分层基于认知评估是否未检测到认知异常(NCA:n = 117)、多种执行认知缺陷(ALS-Exec;n = 56)或共病额颞叶痴呆过程(ALS-FTD;n = 30)。Rey-Osterrieth复杂图形测试(ROCFT)是本研究中视觉记忆的主要因变量。结果:患者和对照组在Copy试验中存在显著差异(p < 0.0001:ω2= 0.317)立即召回(p < 0.0001:ω2= 0.272)和延迟召回(p < 0.0001:ω2= 0.308)。基于执行功能障碍的亚分层揭示了更大的执行功能障碍和更低的ROCFT表现之间的关联。回归分析预测,在ROCFT延迟召回试验中,病前智商、执行功能和人口统计学预测表现(R2 = 0.833)。结论:这些发现表明,在该队列中,没有执行功能障碍的患者没有表现出视觉记忆障碍;执行功能障碍患者在视觉记忆任务上的表现较差;根据认知分类,执行功能障碍的严重程度与ROCFT测试的视觉记忆障碍增加有关。
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来源期刊
CiteScore
5.40
自引率
10.70%
发文量
64
期刊介绍: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration is an exciting new initiative. It represents a timely expansion of the journal Amyotrophic Lateral Sclerosis in response to the clinical, imaging pathological and genetic overlap between ALS and frontotemporal dementia. The expanded journal provides outstanding coverage of research in a wide range of issues related to motor neuron diseases, especially ALS (Lou Gehrig’s disease) and cognitive decline associated with frontotemporal degeneration. The journal also covers related disorders of the neuroaxis when relevant to these core conditions.
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