Eisenberg Jacques, Richman Rafael
Childrens Clinic, Community Mental Hearth Center, Herzog Hospital, Jerusalem, Israel.
Isr J Psychiatry Relat Sci. 2011;48(1):19-24.
Children with impulsive behavior and poor self regulation have been shown to have low parasympathetic tone. High vagal tone is associated with attention to novel stimuli.
To study if Heart Rate Variability, an index of vagal tone, is a mediator of attention.
77 children who performed a Continuous Performance test (TOVA test) had their EKG recorded for Heart Rate Variability Measurements. Subjects were assigned to groups according to their performance on the TOVA test and a general linear model for repeated measures applied. Pearson Correlations were applied for TOVA scores and HRV Values at four epochs.
No individual correlations were found between Attention Scores and HRV. However, there was a significant group difference showing that good performers had a higher "vagal" tone than poor performers.
The parasympathetic system as measured through HRV is not a mediator of attention. HRV may be an indicator of better health and ability to self regulate.
有冲动行为且自我调节能力差的儿童已被证明副交感神经张力较低。高迷走神经张力与对新刺激的注意力有关。
研究作为迷走神经张力指标的心率变异性是否是注意力的中介因素。
77名进行连续操作测试（TOVA测试）的儿童记录心电图以测量心率变异性。根据他们在TOVA测试中的表现将受试者分组，并应用重复测量的一般线性模型。对四个时段的TOVA分数和心率变异性值应用皮尔逊相关性分析。
在注意力分数和心率变异性之间未发现个体相关性。然而，存在显著的组间差异，表明表现良好者比表现不佳者具有更高的“迷走”神经张力。
通过心率变异性测量的副交感神经系统不是注意力的中介因素。心率变异性可能是健康状况更好和自我调节能力的一个指标。
