Evaluating the Effects of Different Cognitive Tasks on Autonomic Nervous System Responses: Implementation of a High-Precision, Low-Cost Complementary Method

IF 2.6 3区 心理学 Q2 BEHAVIORAL SCIENCES Brain and Behavior Pub Date : 2024-10-08 DOI:10.1002/brb3.70089
Nazli Karimi Ahmadi, Sezgi Firat Ozgur, Erhan Kiziltan
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Abstract

Introduction

We developed a low-cost, user-friendly complementary research tool to evaluate autonomic nervous system (ANS) activity at varying levels of cognitive workload. This was achieved using visual stimuli as cognitive tasks, administered through a specially designed computer-based test battery.

Methods

To assess sympathetic stress responses, skin conductance response (SCR) was measured, and electrocardiograms (ECG) were recorded to evaluate heart rate variability (HRV), an indicator of cardiac vagal tone. Twenty-five healthy adults participated in the study. SCR and ECG recordings were made during both tonic and phasic phases using a computer-based system designed for visual stimuli. Participants performed a button-pressing task upon seeing the target stimulus, and the relationship between reaction time (RT) and cognitive load was evaluated.

Results

Analysis of the data showed higher skin conductance levels (SCLs) during tasks compared to baseline, indicating successful elicitation of sympathetic responses. RTs differed significantly between simple and cognitive tasks, increasing with mental load. Additionally, significant changes in vagally mediated HRV parameters during tasks compared to baseline highlighted the impact of cognitive load on the parasympathetic branch of the ANS, thereby influencing the brain–heart connection.

Conclusion

Our findings indicate that the developed research tool can successfully induce cognitive load, significantly affecting SCL, RTs, and HRV. This validates the tool's effectiveness in evaluating ANS responses to cognitive tasks.

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评估不同认知任务对自主神经系统反应的影响:高精度、低成本补充方法的实施。
介绍:我们开发了一种低成本、用户友好型辅助研究工具,用于评估不同认知工作量水平下的自律神经系统(ANS)活动。该工具使用视觉刺激作为认知任务,通过专门设计的基于计算机的测试套件进行测试:为了评估交感神经压力反应,测量了皮肤电导反应(SCR),并记录了心电图(ECG)以评估心率变异性(HRV),这是心脏迷走神经张力的指标。25 名健康成年人参与了这项研究。SCR 和心电图记录是在强直期和相位期使用专为视觉刺激设计的计算机系统进行的。参与者在看到目标刺激后执行按键任务,并评估反应时间(RT)与认知负荷之间的关系:数据分析显示,与基线相比,任务期间的皮肤电导水平(SCLs)更高,这表明交感反应的成功激发。简单任务和认知任务的反应时间差异很大,随着心理负荷的增加而增加。此外,与基线相比,任务期间由迷走神经介导的心率变异参数发生了显著变化,这突出表明了认知负荷对自律神经系统副交感神经分支的影响,从而影响了大脑与心脏的联系:我们的研究结果表明,所开发的研究工具可以成功诱导认知负荷,对 SCL、RT 和心率变异产生显著影响。这验证了该工具在评估自律神经系统对认知任务反应方面的有效性。
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来源期刊
Brain and Behavior
Brain and Behavior BEHAVIORAL SCIENCES-NEUROSCIENCES
CiteScore
5.30
自引率
0.00%
发文量
352
审稿时长
14 weeks
期刊介绍: Brain and Behavior is supported by other journals published by Wiley, including a number of society-owned journals. The journals listed below support Brain and Behavior and participate in the Manuscript Transfer Program by referring articles of suitable quality and offering authors the option to have their paper, with any peer review reports, automatically transferred to Brain and Behavior. * [Acta Psychiatrica Scandinavica](https://publons.com/journal/1366/acta-psychiatrica-scandinavica) * [Addiction Biology](https://publons.com/journal/1523/addiction-biology) * [Aggressive Behavior](https://publons.com/journal/3611/aggressive-behavior) * [Brain Pathology](https://publons.com/journal/1787/brain-pathology) * [Child: Care, Health and Development](https://publons.com/journal/6111/child-care-health-and-development) * [Criminal Behaviour and Mental Health](https://publons.com/journal/3839/criminal-behaviour-and-mental-health) * [Depression and Anxiety](https://publons.com/journal/1528/depression-and-anxiety) * Developmental Neurobiology * [Developmental Science](https://publons.com/journal/1069/developmental-science) * [European Journal of Neuroscience](https://publons.com/journal/1441/european-journal-of-neuroscience) * [Genes, Brain and Behavior](https://publons.com/journal/1635/genes-brain-and-behavior) * [GLIA](https://publons.com/journal/1287/glia) * [Hippocampus](https://publons.com/journal/1056/hippocampus) * [Human Brain Mapping](https://publons.com/journal/500/human-brain-mapping) * [Journal for the Theory of Social Behaviour](https://publons.com/journal/7330/journal-for-the-theory-of-social-behaviour) * [Journal of Comparative Neurology](https://publons.com/journal/1306/journal-of-comparative-neurology) * [Journal of Neuroimaging](https://publons.com/journal/6379/journal-of-neuroimaging) * [Journal of Neuroscience Research](https://publons.com/journal/2778/journal-of-neuroscience-research) * [Journal of Organizational Behavior](https://publons.com/journal/1123/journal-of-organizational-behavior) * [Journal of the Peripheral Nervous System](https://publons.com/journal/3929/journal-of-the-peripheral-nervous-system) * [Muscle & Nerve](https://publons.com/journal/4448/muscle-and-nerve) * [Neural Pathology and Applied Neurobiology](https://publons.com/journal/2401/neuropathology-and-applied-neurobiology)
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