Individual differences in responses to modification stimuli in higher brain function and influence factors for them

在没有噪音和有低或中/高噪音的两次重复执行认知任务期间，研究人员检查了认知任务表现、前额叶联合皮质中的血红蛋白浓度和心血管系统反应的变化，并对其进行了分析，重点是个体差异。结果表明，噪声环境下作业绩效变化的个体差异与噪声水平有关，直接基于心理和人格特征，或间接基于噪声暴露对脑血流动力学或心血管系统反应的影响，或两者兼而有之，与心理和人格特征有关。因此，观察到的个体差异被认为部分源于心理和人格特征的多态。

Alterations during two repetitive executions of a cognitive task, without noise and with low- or moderate/high-level noise were examined for cognitive-task performance, hemoglobin concentrations in the prefrontal association cortex, and cardiovascular-system response, and were analyzed, being focused on individual differences. The results show that individual differences in alterations in task performance under the noise condition depend on noise level and are based directly on psychological and personality traits, or indirectly on those via alterations by noise exposure in the cerebral hemodynamic or cardiovascular-system response, or in the both of them, which have related to psychological and personality traits. Consequently, the individual differences observed have been considered to originate in part from polymorphism in psychological and personality traits.