Interactions Between Depression, Autonomic Dysfunction, Inhibitory Control and Reaction Time: Insights From Heart Rate Variability During Continuous Performance Test.
Chung-Chih Hsu, Tien-Yu Chen, Hsun Ou, Terry B J Kuo, Cheryl C H Yang
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引用次数: 0
Abstract
Objective: This study investigates the relationship between depression, autonomic dysfunction, inhibitory control (IC), and reaction time by analyzing heart rate variability (HRV) during a cognitive task.
Methods: A total of 29 healthy males and 25 males diagnosed with depression (aged 20-35 years) participated. HRV data were recorded during the Conners Continuous Performance Test-II (CCPT-II) in each group. HRV parameters, including mean RR intervals, standard deviation of normal-to-normal heartbeats (SDNN), low-frequency power with logarithm (lnLF), and high-frequency power with logarithm (lnHF), were analyzed and correlated with IC (d') and reaction time.
Results: The depression group exhibited significantly lower lnHF values compared to the healthy group. SDNN and lnLF decreased in both groups during CCPT-II. In the healthy group, d' correlated significantly with SDNN, lnLF, and lnHF at t14 and across the test duration. However, in the depression group, only RR intervals correlated with d'. A significant correlation between reaction time and HRV was noted at t14 in the healthy group, suggesting autonomic nervous system (ANS) involvement in cognitive performance.
Conclusion: Reaction time in healthy individuals correlated with ANS function during later stages of CCPT-II, whereas depression disrupted this association. The lower d' in the depression group was not due to a speed-accuracy trade-off but rather a more pronounced neural network impairment. These findings suggest that depression impairs both IC and autonomic regulation.
期刊介绍：
The Psychiatry Investigation is published on the 25th day of every month in English by the Korean Neuropsychiatric Association (KNPA). The Journal covers the whole range of psychiatry and neuroscience. Both basic and clinical contributions are encouraged from all disciplines and research areas relevant to the pathophysiology and management of neuropsychiatric disorders and symptoms, as well as researches related to cross cultural psychiatry and ethnic issues in psychiatry. The Journal publishes editorials, review articles, original articles, brief reports, viewpoints and correspondences. All research articles are peer reviewed. Contributions are accepted for publication on the condition that their substance has not been published or submitted for publication elsewhere. Authors submitting papers to the Journal (serially or otherwise) with a common theme or using data derived from the same sample (or a subset thereof) must send details of all relevant previous publications and simultaneous submissions. The Journal is not responsible for statements made by contributors. Material in the Journal does not necessarily reflect the views of the Editor or of the KNPA. Manuscripts accepted for publication are copy-edited to improve readability and to ensure conformity with house style.
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