The balance N1 and the ERN correlate in amplitude across individuals in small samples of younger and older adults.
The balance N1 and the ERN correlate in amplitude across individuals in small samples of younger and older adults.
复制标题
在年轻人和老年人的小样本中，平衡 N1 和 ERN 在个体间的振幅相关。
DOI：
10.1007/s00221-023-06692-9
复制
发表时间：
2023
影响因子：
2
通讯作者：
Hajcak,Greg
中科院分区：
文献类型：
--
作者：
Payne,AidenM;Ting,LenaH;Hajcak,Greg
错误相关消极性 (ERN) 是错误监控的神经关联，通常用于研究发育、心理健康和适应性环境中的个体差异。然而，对误差的有限实验控制给其测量带来了一些混乱。实验控制的对站立平衡的干扰会引起平衡 N1，我们之前认为它可能与基于许多共享特征和因素的 ERN 共享潜在机制。我们现在测量两个小组（N = 21 名年轻人和 N = 20 名老年人）内的个体之间的平衡 N1 和 ERN 是否相关。使用手和脚反应模式（ERN-手和ERN-脚）在箭头侧翼任务中测量ERN。平衡 N1 是由站立时地板的突然滑行引起的。 ERN 和平衡 N1 分别表现出良好和极好的内部一致性，并且两组的幅度相关。一个主成分对所有三种诱发电位都有很强的负载，这表明大多数个体差异在三个 ERP 中是相同的。然而，除了与平衡 N1 共享的内容之外，ERN 手和 ERN 脚之间仍然存在显着的共享方差分量。目前尚不清楚该方差分量是否特定于箭头侧翼任务，或者与不是由突然的平衡扰动引起的错误处理根本相关。如果平衡 N1 反映了 ERN 索引的错误处理机制，则平衡范式在错误的实验控制方面具有多种优势。
The error-related negativity (ERN) is a neural correlate of error monitoring often used to investigate individual differences in developmental, mental health, and adaptive contexts. However, limited experimental control over errors presents several confounds to its measurement. An experimentally controlled disturbance to standing balance evokes the balance N1, which we previously suggested may share underlying mechanisms with the ERN based on a number of shared features and factors. We now measure whether the balance N1 and ERN are correlated across individuals within two small groups (N = 21 young adults and N = 20 older adults). ERNs were measured in arrow flanker tasks using hand and foot response modalities (ERN-hand and ERN-foot). The balance N1 was evoked by sudden slip-like movements of the floor while standing. The ERNs and the balance N1 showed good and excellent internal consistency, respectively, and were correlated in amplitude in both groups. One principal component strongly loaded on all three evoked potentials, suggesting that the majority of individual differences are shared across the three ERPs. However, there remains a significant component of variance shared between the ERN-hand and ERN-foot beyond what they share with the balance N1. It is unclear whether this component of variance is specific to the arrow flanker task, or something fundamentally related to error processing that is not evoked by a sudden balance disturbance. If the balance N1 were to reflect error processing mechanisms indexed by the ERN, balance paradigms offer several advantages in terms of experimental control over errors.