■了解心血管参数之间的相互作用,增加负荷引起的认知应激,心理健康对于当今制定综合卫生战略至关重要。通过实时监测心电图(ECG)和光电血管容积图(PPG)等生理信号,研究人员可以发现认知任务如何影响心血管和心理健康。由认知应变引起的心脏生物标志物作为自主神经系统功能的指标,可能反映与心脏和心理健康有关的情况,包括抑郁和焦虑.这项研究的目的是调查认知负荷如何影响ECG和PPG测量,以及这些是否可以在抑郁症和焦虑症期间发出早期心血管变化的信号。
■90名18至45岁的参与者,从没有症状的人到有不同心理状况的人,使用心理问卷和回忆进行评估。当志愿者参与由两个独立的块组成的认知1-back任务时,进行了ECG和PPG监测。每个都有六个逐步具有挑战性的水平。分析参与者的反应,以将生理和心理数据与认知压力源和结果相关联。
■该研究证实了焦虑和抑郁之间的显着相互依存关系,和心血管反应。任务准确性随着任务难度的增加而降低。观察到PPG测量的心率与抑郁和特质焦虑的标志物之间存在很强的关系。任务难度的增加对应于心率的增加,与抑郁和特质焦虑水平升高有关。观察到ECG测量的心率与焦虑发作之间存在很强的关系。任务难度的增加对应于心率的增加,与焦虑发作水平升高有关,尽管这种关联在更具挑战性的条件下下降。
■研究结果强调了ECG和PPG心率参数在心理健康评估中的预测重要性,特别是在增加负荷的认知压力下的抑郁和焦虑。我们讨论了解释这些差异的交感神经激活机制。我们的研究成果对临床评估和可穿戴设备算法具有更精确的意义,个性化心理健康诊断。
UNASSIGNED: Understanding the interplay between cardiovascular parameters, cognitive stress induced by increasing load, and mental well-being is vital for the development of integrated health strategies today. By monitoring physiological signals like electrocardiogram (ECG) and
photoplethysmogram (PPG) in real time, researchers can discover how cognitive tasks influence both cardiovascular and mental health. Cardiac biomarkers resulting from cognitive strain act as indicators of autonomic nervous system function, potentially reflecting conditions related to heart and mental health, including depression and anxiety. The purpose of this study is to investigate how cognitive load affects ECG and PPG measurements and whether these can signal early cardiovascular changes during depression and anxiety disorders.
UNASSIGNED: Ninety participants aged 18 to 45 years, ranging from symptom-free individuals to those with diverse psychological conditions, were assessed using psychological questionnaires and anamnesis. ECG and PPG monitoring were conducted as volunteers engaged in a cognitive 1-back task consisting of two separate blocks, each with six progressively challenging levels. The participants\' responses were analyzed to correlate physiological and psychological data with cognitive stressors and outcomes.
UNASSIGNED: The study confirmed a notable interdependence between anxiety and depression, and cardiovascular responses. Task accuracy decreased with increased task difficulty. A strong relationship between PPG-measured heart rate and markers of depression and trait anxiety was observed. Increasing task difficulty corresponded to an increase in heart rate, linked with elevated levels of depression and trait anxiety. A strong relationship between ECG-measured heart rate and anxiety attacks was observed. Increasing task difficulty corresponded to an increase in heart rate, linked with elevated levels of anxiety attacks, although this association decreased under more challenging conditions.
UNASSIGNED: The findings underscore the predictive importance of ECG and PPG heart rate parameters in mental health assessment, particularly depression and anxiety under cognitive stress induced by increasing load. We discuss mechanisms of sympathetic activation explaining these differences. Our research outcomes have implications for clinical assessments and wearable device algorithms for more precise, personalized mental health diagnostics.